AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 12, 2002

                                              REGISTRATION NO. 333-
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                       -----------------------------------
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                      ------------------------------------
                               PENTON MEDIA, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)




                                                                       
                   DELAWARE                                                              36-2875386
(STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION)             (I.R.S. EMPLOYER IDENTIFICATION NUMBER)


                             1300 EAST NINTH STREET
                              CLEVELAND, OHIO 44114
                                 (216) 696-7000
   (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                        REGISTRANT'S PRINCIPAL EXECUTIVE
                                    OFFICES)
                      ------------------------------------
                               JOSEPH G. NECASTRO
                             CHIEF FINANCIAL OFFICER
                             1300 EAST NINTH STREET
                              CLEVELAND, OHIO 44114
                                 (216) 696-7000
 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                              OF AGENT FOR SERVICE)

                                   COPIES TO:
                           CHRISTOPHER M. KELLY, ESQ.
                           JONES, DAY, REAVIS & POGUE
                               901 LAKESIDE AVENUE
                              CLEVELAND, OHIO 44114
                                 (216) 586-3939
                      ------------------------------------



   APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: From time to
time after this Registration Statement becomes effective.
   If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]
   If any of the securities being registered on this form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]
   If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]
   If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]
   If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]

                            ------------------------
                         CALCULATION OF REGISTRATION FEE

================================================================================




          TITLE OF EACH CLASS                           AMOUNT      PROPOSED MAXIMUM    PROPOSED MAXIMUM     AMOUNT OF
             OF SECURITIES                              TO BE        OFFERING PRICE    AGGREGATE OFFERING   REGISTRATION
            TO BE REGISTERED                         REGISTERED(2)      PER UNIT(3)         PRICE(3)           FEE(3)
------------------------------------------------------------------------------------------------------------------------------
                                                                                                 
Common Stock, par value $.01 per  share(1)             8,871,349          $7.525           $66,756,901       $6,141.63
------------------------------------------------------------------------------------------------------------------------------

================================================================================

(1) Also relates to stock purchase rights that are attached to all shares of
    common stock of the Registrant in accordance with the Rights Agreement,
    dated June 9, 2000, by and between the Company and National City Bank, as
    successor rights agent. These rights are not exercisable until the
    occurrence of events specified in the Rights Agreement, are evidenced by the
    certificates for the common stock and are transferred solely with the common
    stock. The value attributable to these rights, if any, is reflected in the
    value of the common stock, and, accordingly, no separate fee is paid.
(2) Represents shares being registered for resale by holders of shares of Series
    B Convertible Preferred Stock and certain warrants to purchase common stock
    of the Registrant (the "Selling Stockholders"), pursuant to agreements among
    the Registrant and the Selling Stockholders as follows: (i) 7,271,349 shares
    of common stock, representing all of the shares currently issuable upon the
    conversion of the preferred stock held by the Selling Stockholders; (ii)
    1,600,000 shares of common stock, representing all of the shares issuable
    upon exercise of the warrants to purchase common stock and (iii) an
    indeterminable number of additional shares of common stock, pursuant to Rule
    416 under the Securities Act of 1933, as amended (the "Securities Act"),
    that may be issued to prevent dilution resulting from stock splits, stock
    dividends or similar transactions affecting the shares to be offered by the
    Selling Stockholders.
(3) Estimated solely for the purpose of computing the registration fee pursuant
    to Rule 457(c) of the Securities Act of 1933 (based on the average high and
    low sales price on April 5, 2002, which date is within five business days
    prior to filing).

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.

================================================================================


The information contained in this prospectus is not complete and may be changed.
A registration statement has been filed with the Securities and Exchange
Commission. The selling stockholders identified in this prospectus may not sell
these securities nor may they accept offers to buy until the registration
statement filed with the Securities and Exchange Commission is effective. This
prospectus is not an offer to sell these securities and it is not soliciting an
offer to buy these securities in any jurisdiction where the offer or sale is not
permitted.


                   Subject To Completion. Dated April 12, 2002

PROSPECTUS


                               PENTON MEDIA, INC.

                               8,871,349 SHARES OF

                          COMMON STOCK, PAR VALUE $.01


   The selling stockholders are offering shares of our common stock by means of
this prospectus, and the maximum number of shares that they may offer are
identified on page 17 of this prospectus. The selling stockholders have acquired
or may acquire the shares of common stock being offered by converting shares of
our Series B preferred stock or by exercising warrants that we issued in a
private financing. The selling stockholders may sell these shares at any time,
but they are not required to sell any shares.

                      ------------------------------------

   Our common stock is listed on the New York Stock Exchange under the symbol
"PME." On April 12, 2002, the last reported sale price of our common stock on
the NYSE was $9.11 per share. The selling stockholders may offer shares through
public or private transactions, at prevailing market prices, or at privately
negotiated prices. More detailed information about the distribution of the
shares is found in the section of this prospectus entitled "Plan of
Distribution."

                      ------------------------------------


              SEE "RISK FACTORS" BEGINNING ON PAGE 3 TO READ ABOUT
              CERTAIN FACTORS BEFORE INVESTING IN OUR COMMON STOCK.

                      ------------------------------------


   THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.


                   The date of this prospectus is   , 2002.








                               TABLE OF CONTENTS




                                                                                               
WHERE YOU CAN FIND MORE INFORMATION................................................................1

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE....................................................1

ABOUT THIS PROSPECTUS..............................................................................2

FORWARD-LOOKING STATEMENTS.........................................................................2

ABOUT PENTON.......................................................................................3

RISK FACTORS.......................................................................................3

USE OF PROCEEDS....................................................................................8

DESCRIPTION OF OUR PREFERRED STOCK AND WARRANTS....................................................8

SELLING STOCKHOLDERS..............................................................................14

PLAN OF DISTRIBUTION..............................................................................14

LEGAL MATTERS.....................................................................................16

EXPERTS.......................................................................................... 16










                       WHERE YOU CAN FIND MORE INFORMATION

        We are subject to the informational reporting requirements of the
Securities Exchange Act of 1934. We file reports, proxy statements and other
information with the Securities and Exchange Commission. You can inspect and
copy the reports, proxy statements and other information at the Public Reference
Room of the SEC located at Room 1024, 450 Fifth Street, N.W., Washington, D.C.
20549. You can obtain copies of these materials at prescribed rates from the
Public Reference Room of the SEC. The SEC maintains a web site at
http://www.sec.gov that contains reports, proxy and information statements and
other information on a delayed basis regarding registrants, including us, that
file electronically with the SEC. Our common stock, par value $.01 per share, is
listed on The New York Stock Exchange under the symbol "PME." You can also
inspect and copy any reports, proxy statements and other information that we
file with the SEC at the offices of The New York Stock Exchange located at 20
Broad Street, New York, NY 10005.


                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

        The SEC allows us to incorporate by reference the information that we
file with the SEC. This allows us to disclose important information to you by
referring you to those documents rather than repeating them in full in this
prospectus. The information incorporated by reference in this prospectus
contains important business and financial information. In addition, information
that we file with the SEC after the date of this prospectus automatically
updates and supersedes the information contained in this prospectus and
incorporated filings. We have previously filed the following documents with the
SEC (File No. 1-14337) and are incorporating them into this prospectus by
reference:

        -       our Annual Report on Form 10-K for the fiscal year ended
                December 31, 2001;

        -       our Current Report on Form 8-K dated and filed with the SEC on
                March 11, 2002;

        -       our Current Report on Form 8-K dated March 10, 2002 and filed
                with the SEC on March 13, 2002;

        -       our Current Report on Form 8-K dated and filed with the SEC on
                March 19, 2002;

        -       our Current Report on Form 8-K dated and filed with the SEC on
                March 22, 2002;

        -       our Current Report on Form 8-K dated and filed with the SEC on
                March 28, 2002;

        -       the description of the rights contained in our Registration
                Statement on Form 8-A filed with the SEC on June 12, 2000,
                including any amendment or report filed for the purpose of
                updating such description; and

        -       the description of our common stock contained in our
                Registration Statement on Form 8-A filed with the SEC on July
                24, 1998, including any amendment or report filed for the
                purpose of updating such description.

        Each document or report that we file pursuant to Section 13(a), 13(c),
14 or 15(d) of Exchange Act after the date of this prospectus and until the
offering of the securities terminates will be incorporated by reference into
this prospectus and to be a part of this prospectus from the date of filing of
that document.

        You may request a copy of any of these filings (other than an exhibit to
those filings unless we have specifically incorporated that exhibit by reference
into the filing), at no cost, by telephoning or writing to us at the following
phone number and address:

                               Penton Media, Inc.
                             1300 East Ninth Street
                              Cleveland, Ohio 44114
                       Attention: Mary Abood, Director of
                            Corporate Communications
                         Telephone Number: 216-696-7000







                                       1




                              ABOUT THIS PROSPECTUS

        References in the prospectus to the term "we," "us" or "Penton" or other
similar terms mean Penton Media, Inc. and its consolidated subsidiaries, unless
we state otherwise or the context indicates otherwise. The term "common stock"
means our common stock, $.01 par value, and the term "preferred stock" means our
Series B Convertible Preferred Stock, $.01 par value, unless the context
indicates a different meaning.

        Except as otherwise set forth in this prospectus, we have agreed to pay
the expenses incurred in registering the shares of common stock being offered by
this prospectus.

        This document is called a prospectus and is part of a registration
statement that we filed with the SEC using a "shelf" registration or continuous
offering process. Under this shelf process, the selling stockholders may from
time to time sell any combination of the securities described in this prospectus
in one or more offerings.

        You should rely only on the information contained or incorporated by
reference in this prospectus and in any prospectus supplement. Neither we, nor
any underwriters or agents, have authorized anyone to provide you with different
information. The selling stockholders are not offering the securities in any
state where the offering is prohibited. You should not assume that the
information in this prospectus, any prospectus supplement, or any document
incorporated by reference, is truthful or complete at any date other than the
date mentioned on the cover page of those documents.

        The information in this prospectus is accurate as of the date on the
front cover. You should not assume that the information contained in this
prospectus is accurate as of any other date.


                           FORWARD-LOOKING STATEMENTS

        A number of statements made in or incorporated by reference into this
prospectus are not historical or current facts, but deal with potential future
circumstances and developments. Those statements are qualified by the inherent
risks and uncertainties surrounding future expectations generally, and also may
materially differ from our actual future experience involving any one or more of
these matters and subject areas. We attempted to identify, in context, some of
the factors that we currently believe may cause future experience and results to
differ from our current expectations regarding the relevant matter or subject
area. We have identified some of these forward-looking statements with words
such as "anticipates," "estimates," "believes," "expects," "intends," "may,"
"will," "should" or the negative of those words or other comparable terminology.
The operation and results of our business also may be subject to the effect of
other risks and uncertainties, including but not limited to:

        -       economic uncertainty, exacerbated by terrorist attacks on the
                United States;

        -       the performance of our Internet/Broadband industry sector;

        -       fluctuations in advertising revenue with general economic
                cycles;

        -       the effectiveness of our cost saving efforts;

        -       the seasonality of revenue from trade shows and conferences;

        -       our ability to penetrate new markets internationally;

        -       our ability to launch new products that fit strategically with
                and add value to our businesses;

        -       the infringement or invalidation of our intellectual property
                rights; and

        -       increases in paper and postage costs.





                                       2




                                  ABOUT PENTON

        We are a leading, global business-to-business media company. We provide
media products that deliver proprietary business information to owners,
operators, managers, and professionals in the industries we serve. Through these
products, we offer industry suppliers multiple ways to reach their customers and
prospects as part of their sales and marketing efforts. We produce 65
specialized trade magazines, 135 trade shows and conferences, and online media
products. We benefit from revenue diversification, primarily as a result of our
business presence in 12 different industry sectors consisting of over 20,000
advertisers and exhibitors.

        We became an independent company, incorporated in the State of Delaware,
as a result of our spinoff from Pittway Corporation in August 1998. Our
principal executive office is located at 1300 East Ninth Street, Cleveland, Ohio
44114, and our telephone number is (216) 696-7000. Our common stock is listed on
The New York Stock Exchange under the symbol "PME."


                                  RISK FACTORS

        You should carefully consider the following risks, in addition to the
other information in this prospectus, and the information incorporated by
reference, before deciding to invest in our common stock. There may be other
important risk factors that we have not recognized.


WE HAVE A SIGNIFICANT AMOUNT OF DEBT.

        At December 31, 2001, we had total indebtedness of approximately $364.8
million, excluding approximately $4.0 million of original issue discount on our
10 3/8% senior subordinated notes.

        The level of our indebtedness could have important consequences,
including:

        -       limiting cash flow available for general corporate purposes,
                including capital expenditures and acquisitions, because a
                substantial portion of our cash flow from operations must be
                dedicated to servicing our debt;

        -       limiting our ability to obtain additional debt financing in the
                future for working capital, capital expenditures or
                acquisitions;

        -       making us more vulnerable in the event of a further downturn in
                general economic conditions or in our business;

        -       limiting our flexibility in reacting to competitive and other
                changes in our industry and economic conditions generally; and

        -       exposing us to risks inherent in interest rate fluctuations
                because some of our borrowings will be at variable rates of
                interest, which could result in higher interest expense in the
                event of increases in interest rates.

        Our current debt levels have subjected us to the risk described above.
If new debt is added to our current debt levels, the impact of these substantial
risks will intensify.


WE MAY NOT BE ABLE TO SERVICE OUR DEBT.

        Our ability to pay or to refinance our indebtedness will depend upon our
future operating performance, which will be affected by general economic,
financial, competitive, business and other factors beyond our control.

        We cannot assure you that our business will generate sufficient cash
flow from operations, that currently anticipated revenue growth and cost-saving
efforts will be realized on schedule or at all, or that future borrowings will
be available to us under our credit facility or otherwise in amounts sufficient
to enable us to service our debt obligations, to pay our indebtedness at
maturity or otherwise, or to fund our other liquidity needs. If we are unable to
meet our debt obligations or




                                       3



fund our other liquidity needs, we may need to further restructure or refinance
our indebtedness, sell assets or seek additional equity capital. We cannot
assure you that we will be able to accomplish those actions on satisfactory
terms, if at all, which could cause us to default on our obligations and impair
our liquidity. Our ability to restructure or refinance will depend on the
capital markets and our financial condition at such time. Any refinancing of our
debt could be at higher interest rates and may require us to comply with more
onerous covenants, which could further restrict our business operations. In
addition, the terms of the convertible preferred stock and warrants to purchase
common stock, including the conversion price, dividend, and liquidation
preference adjustment provisions that could result in substantial dilution to
stockholders, the redemption price premiums, and board representation rights,
could negatively impact our ability to access the equity markets in the future.

        Because a significant portion of our operations currently is conducted
through our subsidiaries, our ability to pay our indebtedness, is also dependent
on the cash flows of our subsidiaries and the distribution of those cash flows
to us, or upon loans or other payments of funds by our subsidiaries to us. The
ability of our subsidiaries to make distributions or other payments to us will
depend upon their operating results and applicable laws and any contractual
restrictions contained in the instruments governing their indebtedness. If money
generated by our subsidiaries is not available to us, our ability to repay our
indebtedness may be adversely affected.


THE TERMS OF OUR DEBT INSTRUMENTS AND PREFERRED STOCK IMPOSE FINANCIAL AND
OPERATING RESTRICTIONS.

        The indentures governing our 10u% senior subordinated notes and our 11"%
senior secured notes, our credit facility, and our new convertible preferred
stock contain restrictive covenants that limit our ability to engage in a
variety of transactions, including incurring or guaranteeing additional
indebtedness, making investments, creating liens on our assets, transferring or
selling our assets, paying dividends, or engaging in mergers, acquisitions, or
consolidations. The terms of our credit facility prohibit us from voluntarily
prepaying certain indebtedness.

        A breach of any of the covenants or other provisions in our debt
instruments could result in a default thereunder. Upon the occurrence of an
event of default under our credit facility, the lenders could elect to declare
all amounts outstanding thereunder to be immediately due and payable and
terminate all commitments to extend further credit, which would adversely affect
our ability to fund our operations. An acceleration of the amounts due under our
credit facility would cause us to be in default under the indentures governing
our 10u% senior subordinated notes and our 11"% senior secured notes, enabling
acceleration of amounts outstanding. If we are unable to repay any accelerated
amounts under the credit facility, the respective lenders could proceed against
the collateral granted to them to secure that indebtedness. If the lenders under
our credit facility accelerate the repayment of borrowings, we cannot assure you
that we will have sufficient assets to repay all of our indebtedness.


TRADE SHOW AND CONFERENCE ATTENDANCE DECLINED SIGNIFICANTLY IN 2001 AS A RESULT
OF THE SLOWDOWN OF ECONOMIES IN THE UNITED STATES, EUROPE, AND ASIA AND THE
SEPTEMBER 11, 2001 TERRORIST ATTACKS, AND A CONTINUED DECLINE WOULD HAVE A
FURTHER MATERIAL ADVERSE EFFECT ON OUR BUSINESS, RESULTS OF OPERATIONS, AND
FINANCIAL CONDITION.

        Prior to the attacks on the United States on September 11, 2001,
bookings for most of our events scheduled for the fourth quarter of 2001 were
running well behind 2000 bookings primarily due to the slowdown of economies in
the United States, Europe, and Asia. For 2001, our trade shows and conferences
revenues decreased $19.2 million and trade shows and conferences adjusted
EBITDA, before general and administrative costs, decreased $26.3 million from
prior year levels. Advance bookings for our trade shows and conferences continue
to be at levels lower than in prior periods. Because our trade shows and
conferences business typically generates higher margins than our other
businesses, decreases in trade shows and conferences revenues cause a
disproportionately greater decrease in our total adjusted EBITDA than do revenue
decreases in our other businesses. Because we had strong attendance at our trade
shows and conferences in the first half of 2001 (particularly our Internet World
Spring show) and expect lower attendance in 2002, we anticipate that our
adjusted EBITDA for the first half of 2002 will be lower than the prior-year
period.

        Since September 11, 2001, there has been a decline in air travel due to,
among other things, the public's general reluctance to travel and fears
regarding additional acts of terrorism, as well as reduced operations by
airlines due to, among other things, decreased demands for air travel, new
security directives, and increased costs. The magnitude and duration of these
effects are unknown, but our trade shows and conferences have been negatively
affected. We believe the September attacks caused as much as an additional 10%
to 15% reduction in revenues for the events completed in the fourth quarter.
Continued negative market conditions due to the weakened U.S. economy, the
September 11, 2001 terrorist attacks, any future occurrences of similar
terrorist activities, or threats of such activities and actions by the United
States and other




                                       4



countries that perpetuate a climate of war could cause more disruption of our
trade shows and conferences. If attendance decreases further, our business,
results of operations, and financial condition would be materially adversely
affected.


OUR INTERNET/BROADBAND BUSINESS HAS SIGNIFICANTLY DECLINED, AND A CONTINUED
DECLINE WOULD HAVE A FURTHER MATERIAL ADVERSE EFFECT ON OUR BUSINESS, RESULTS OF
OPERATIONS, AND FINANCIAL CONDITION.

        In 2001, our Internet/Broadband industry sector produced 29% of our
revenue, compared to 36% in 2000. Prior to the events of September 11, 2001, we
were experiencing a general decline in this sector as a result of both the
failure of many Internet products and services companies and the general U.S.
economic decline. Some of our customers went out of business or chose not to
participate in our trade shows and conferences as part of a general trend toward
decreased information technology spending. For example, we saw a significant
decrease in revenues from our high-margin Internet World Spring trade show, and
we saw a general decline in revenues from our technology magazines, especially
Internet World magazine. These trends were exacerbated by the events of
September 11, 2001, causing more substantial declines in the latter part of the
year. Following these events, we were forced to reschedule our Internet World
Fall trade show, and we experienced further reduced attendance levels. Because
this industry sector has typically represented a significant portion of our
business and generated high margins, declines in the Internet/Broadband industry
sector cause a disproportionately greater decrease in our total adjusted EBITDA
than do declines in our other industry sectors. A continued decline in the
performance of these product offerings or a decline in our other product
offerings in this sector, or our inability to regain customers lost in 2001,
would materially adversely affect our business, results of operations, and
financial condition.


WE DEPEND ON ADVERTISING REVENUES, WHICH DECREASE DURING ECONOMIC DOWNTURNS AND
FLUCTUATE FROM PERIOD TO PERIOD.

        For the year ended December 31, 2001, about 47.6% of our revenue came
from advertising. Our advertising revenues fluctuate with general economic
cycles, and any material decline in these revenues would have a material adverse
effect on our business, results of operations, and financial condition.
Historically, advertising revenues have increased during economic recoveries and
decreased during both general economic downturns and regional economic
recessions. In a general economic downturn or a recession, advertisers reduce
their advertising budgets, intensify their attempts to negotiate lower
advertising rates, and pay outstanding invoices slower. We are experiencing some
of these effects. Our advertising revenues were significantly lower in 2001 as
compared to 2000.


IF THE U.S. ECONOMY WORSENS, THE COST SAVING EFFORTS WE IMPLEMENTED MAY NOT BE
SUFFICIENT TO ACHIEVE THE BENEFITS WE EXPECT.

        In 2001, we experienced a significant decline in revenues and adjusted
EBITDA primarily due to weak economic conditions, which were exacerbated by the
terrorist attacks of September 11, 2001. This decline was more severe in the
second half of the year. We cannot predict if or when the economy or our
revenues and adjusted EBITDA will improve. We have taken a number of steps
designed to improve our profits and margins despite decreased revenues. We have
restructured a number of our businesses and support departments and reduced
overhead infrastructure by consolidating and closing several offices,
centralizing information technology services and outsourcing certain corporate
functions. As a result, we recorded special charges to our income of $87.5
million in 2001. If the U.S. economy worsens or additional terrorist attacks
occur, our revenues will likely continue to decline. Decreases in our revenues
cause disproportionately greater decreases in our adjusted EBITDA. Accordingly,
if revenues decline beyond our expectations, the cost saving efforts we
implemented in the second half of 2001 will likely not achieve the benefits we
expect. We may be forced to take additional cost saving steps that could result
in additional charges and otherwise materially adversely affect our business.


THE PROFITABILITY AND SUCCESS OF OUR TRADE SHOWS AND CONFERENCES COULD BE
ADVERSELY AFFECTED IF WE ARE UNABLE TO OBTAIN DESIRABLE DATES AND LOCATIONS OR
ARE UNABLE TO INCREASE THE SIZE OF OUR EVENTS.

        In 2001, about 40.1% of our revenue came from trade shows and
conferences. We increasingly compete for desirable dates and venues for our
trade shows and conferences. As this competition intensifies, we may be unable
to schedule important engagements. If we are unable to obtain desirable dates
and venues for events, the profitability and future success of these events
could be adversely affected. Although we generally reserve venues and dates more
than one year in advance, these reservations are not binding until we sign a
contract with a facility operator. These contracts generally hold venues and
dates for only one year. In addition, we may desire to increase the size of our
trade shows and conferences to take advantage of increasing demand in the
future, If we are unable to secure larger venues with suitable exhibit space to
accommodate this demand, the growth of our trade shows and conferences business
could be adversely affected.



                                       5



OUR TRADE SHOWS AND CONFERENCES AND PUBLISHING REVENUES VARY DUE TO THE MOVEMENT
OF ANNUAL EVENT OR PUBLICATION MAILING DATES AND TIMING OF OUR CUSTOMERS'
PRODUCT LAUNCHES.

        Our trade shows and conferences and publishing revenues are seasonal,
primarily due to the timing of our large trade shows and conferences and
publication of our large industry directories. Because event revenues are
recognized when a particular event is held, and publication revenues are
recognized in the month publications are mailed, we may also experience
fluctuations in quarterly revenues based on the movement of annual events or
mailing dates from one quarter to another. In 2001, about 30.3% of our total
revenue was generated during the first quarter, about 28.7% during the second,
about 16.6% during the third, and about 24.4% of our revenue was generated
during the fourth.

        Our trade shows and conferences revenues may fluctuate from period to
period based on the spending patterns of our customers. Many of our large
customers concentrate their trade show participation around major product
launches. Because we cannot always know or predict when our large customers
intend to launch new products, it is difficult to anticipate any related
fluctuations in our trade shows and conferences revenues.


LOSS OF KEY PERSONNEL COULD IMPAIR OUR SUCCESS.

        We benefit from the leadership and experience of our senior management
team, and we depend on their continued services in order to successfully
implement our business strategy. Although we have entered into employment
agreements with Thomas L. Kemp, Daniel J. Ramella and other management members,
they and other key personnel may not remain in our employment. The loss of key
personnel could have a material adverse effect on our business, results of
operations, and financial condition. We do not maintain "key person" life
insurance with respect to our senior management team.


COMPETITION MAY ADVERSELY AFFECT OUR EARNINGS AND RESULTS OF OPERATIONS.

        We experience intense competition for our products and services. If we
fail to compete effectively, our earnings and results of operations could be
adversely affected. We compete for readers and advertisers in the publishing
marketplace and for trade show and conference venues, sponsorships, exhibitors,
and show attendees. Because our industry is relatively easy to enter, we
anticipate that additional competitors, some of whom may have greater resources
than we do, may enter these markets and intensify competition.


OUR OVERALL OPERATIONS MAY BE ADVERSELY AFFECTED BY RISKS ASSOCIATED WITH
INTERNATIONAL OPERATIONS.

        We have operations outside the United States and we intend to expand
further into international markets. The following risks in international markets
could have a material adverse effect on our future international operations and,
consequently, on our business, results of operations, and financial condition:

        -       the uncertainty of product acceptance by different cultures;

        -       the risks of divergent business expectations or cultural
                incompatibility inherent in establishing joint ventures with
                foreign partners;

        -       difficulties in staffing and managing multi-national operations;

        -       currency fluctuations;

        -       general economic and political uncertainties and potential for
                social unrest;

        -       limitations on our ability to enforce legal rights and remedies;

        -       reduced protection for intellectual property rights in some
                countries;

        -       state-imposed restrictions on the repatriation of funds; and

        -       potentially adverse tax consequences.



                                       6



NEW PRODUCT LAUNCHES OR ACQUIRED PRODUCTS MAY REDUCE OUR EARNINGS OR GENERATE
LOSSES.

        Our future success will depend in part on our ability to continue
offering new products that successfully gain market acceptance by addressing the
needs of specific audience groups within our targeted industries. Our efforts to
introduce new or integrate acquired products may not be successful or
profitable. The process of internally researching and developing, launching,
gaining acceptance, and establishing profitability for a new product, or
assimilating and marketing an acquired product, is both risky and costly. New
products generally incur initial operating losses.

        In addition, we have invested in, and intend to continue to invest in,
the development of various online media products, which are currently generating
losses. The Internet is still not proven as a profitable commercial medium.
These products may not be successful or profitable. In 2001, we wrote off $1.7
million of assets related to online media initiatives.

        Costs related to the development of new products are expensed as
incurred and, accordingly, our profitability from year to year may be adversely
affected by the number and timing of new product launches.


THE INFRINGEMENT OR INVALIDATION OF OUR PROPRIETARY RIGHTS COULD HAVE AN ADVERSE
EFFECT ON OUR BUSINESS.

        We regard our copyrights and trademarks, including our Internet domain
names, service marks, and similar intellectual property, as critical to our
success. We rely on copyright and trademark laws in the United States and other
jurisdictions and on confidentiality agreements with some of our employees and
others to protect our proprietary rights. If any of these rights were infringed
or invalidated, our business could be adversely affected. In addition, our
business activities could infringe upon the proprietary rights of others, who
could assert infringement claims against us. If we are forced to defend against
any such claims, whether they are with or without merit or are determined in our
favor, then we may face costly litigation, diversion of technical and management
personnel, or product and service delays. As a result of such a dispute, we may
have to develop non-infringing technology or enter into royalty or licensing
agreements. Such royalty or licensing agreements, if required, may be
unavailable on terms acceptable to us, or at all. If there is a successful claim
of infringement against us and we are unable to develop non-infringing
technology or enter into royalty or licensing agreements on a timely basis, our
business could be adversely affected.

        We seek to register our trademarks in the United States and elsewhere.
These registrations could be challenged by others or invalidated through
administrative process or litigation. In addition, our confidentiality
agreements with some of our employees or others may not provide adequate
protection of our proprietary rights in the event of unauthorized use or
disclosure of our proprietary information or if our proprietary information
otherwise becomes known, or is independently developed, by competitors.


RELIANCE ON PRINCIPAL VENDORS COULD ADVERSELY AFFECT OUR BUSINESS.

        We rely on our principal vendors and their ability or willingness to
sell products to us on favorable price and other terms. Many factors outside our
control may harm these relationships and the ability or willingness of these
vendors to sell these products to us on such terms. Currently, our principal
vendors are paper suppliers, the United States Postal Service, and printing
suppliers. If any of our principal vendors discontinues or temporarily
terminates its services and we are unable to find adequate alternatives, we may
experience increased prices, interruptions, and delays in services. These
factors could adversely affect our business.


INCREASES IN PAPER OR POSTAGE COSTS COULD CAUSE OUR EXPENSES TO INCREASE AND MAY
ADVERSELY AFFECT OUR BUSINESS.

        Paper and postage are necessary expenses relating to our print products,
magazine distribution, and direct mail solicitations. In 2001, these expenses
accounted for approximately 3.5% and 5.0%, respectively, of our total operating
expenses, excluding unusual items. Significant increases in paper prices, which
have been volatile in recent years, or in postage prices may have an adverse
effect on our business. We do not use forward contracts and all of our paper
supply vendor arrangements provide for price adjustments on a quarterly basis to
reflect then-prevailing market prices. We use the United States Postal Service
for domestic distribution of substantially all of our magazines and marketing
materials.


                                       7




WE MAY BE SUBJECT TO CONTINGENT TAX LIABILITY RELATED TO THE SPINOFF OF OUR
COMMON STOCK BY PITTWAY.

        In connection with the tax-free spinoff of our common stock by Pittway
to its stockholders in August 1998, we agreed not to take any action that would
cause the spinoff to be taxable to Pittway under section 355 of the Internal
Revenue Code, and to indemnify Pittway for any liability suffered by it in that
event. The spinoff would be taxable to Pittway if, as part of a plan or series
of related transactions, as determined under a facts and circumstances test, one
or more persons, acting independently or in concert, have acquired 50.0% or more
of our common stock. Since August 1998, our common stock has been involved in a
number of transactions. Because of the open-ended nature of the facts and
circumstances test, we believe, but we cannot assure you, that the Internal
Revenue Service could not successfully assert that one or more transactions
involving our common stock were part of a plan or series of related transactions
that has caused the spinoff to be taxable to Pittway. If the spinoff were
taxable to Pittway, our payment to Pittway under our indemnity agreement could
have a material adverse effect on our financial condition.


WE MAY LOSE CONTROL OF OUR BOARD.

        The terms of the convertible preferred stock entitle the holders thereof
initially to three board seats. However, at such time as the holders of
convertible preferred stock cease to hold shares of convertible preferred stock
having an aggregate liquidation preference of at least $25.0 million, they will
lose the right to appoint the director for one of these three board seats.

        Upon the occurrence of the following events, the holders of a majority
of the convertible preferred stock may nominate two additional members to our
board of directors and, if such triggering events have not been cured or waived
prior to the end of the next succeeding quarter, may appoint one less than a
minimum majority of our board of directors:

        -       Failure to comply with certain specified covenants and
                obligations contained in the convertible preferred stock
                certificate of designations or purchase agreement and such
                failure is not cured within 90 days;

        -       Any representation or warranty in the convertible preferred
                stock purchase agreement is proven to be false or incorrect in
                any material respect; and

        -       Any default that results in the acceleration of indebtedness,
                where the principal amount of such indebtedness, when added to
                the principal amount of all other indebtedness then in default,
                exceeds $5.0 million or final judgments for the payment of money
                aggregating more than $1.0 million (net of insurance proceeds)
                are entered against us and are not discharged, dismissed, or
                stayed pending appeal within 90 days after entry.

        Upon the occurrence of the following events, the holders of a majority
of the convertible preferred stock may appoint one less than a minimum majority
of our board of directors:

        -       Failure to pay the liquidation preference or any cash dividends,
                to the extent declared, when due; and

        -       Failure to comply with certain specified covenants and
                obligations contained in the convertible preferred stock
                certificate of designations or purchase agreement.

        Upon the occurrence of the following event, the holders of a majority of
the convertible preferred stock may appoint a minimum majority of our board of
directors:

        -       We initiate or consent to proceedings under any applicable
                bankruptcy, insolvency, composition, or other similar laws or
                make a conveyance or assignment for the benefit of our creditors
                generally or any holders of any lien takes possession of, or a
                receiver, administrator, or other similar officer is appointed
                for, all or substantially all of our properties, assets or
                revenues and is not discharged within 90 days.

        On March 19, 2008, the holders of a majority of the convertible
preferred stock then outstanding, if any, will be entitled to appoint one less
than a minimum majority of our board of directors, subject to the right to
appoint a minimum majority of our board of directors as described in the
immediately preceding paragraph.


                                       8





        At such time as the holders of convertible preferred stock cease to hold
shares of convertible preferred stock having an aggregate liquidation preference
of at least $10.0 million and such holders' beneficial ownership of our
convertible preferred stock and common stock constitutes less than 5% of the
aggregate voting power of our voting securities, the holders of convertible
preferred stock will no longer have the right to any directors.


TAKEOVER DEFENSE PROVISIONS MAY ADVERSELY AFFECT THE MARKET PRICE OF OUR COMMON
STOCK.

        Various provisions of Delaware corporation law and of our corporate
governance documents may inhibit changes in control not approved by our Board of
Directors and may have the effect of depriving stockholders of an opportunity to
receive a premium over the prevailing market price of our common stock in the
event of an attempted hostile takeover. In addition, the existence of these
provisions may adversely affect the market price of our common stock. These
provisions include:

        -       a classified Board of Directors

        -       a prohibition of stockholder action through written consents;

        -       a requirement that special meetings of stockholders be called
                only by the Board of Directors;

        -       advance notice requirements for stockholder proposals and
                nominations; and

        -       availability of "blank check" preferred stock.

        In the event of a sale of the company or a change of control of the
company (as defined in our bond indentures), the holders of preferred stock will
have the right to require us to purchase all of such holder's preferred stock
for a cash purchase price equal to the liquidation preference as described
below, subject to our satisfaction of our obligations under the indentures
governing our 10u% senior subordinated notes and 11"% senior secured notes. As a
result of this provision, the preferred stock holders' board representation and
the voting power of the holders of the preferred stock, it would be very
difficult for another party to successfully acquire Penton without the
concurrence of the holders of a majority of the shares of preferred stock then
outstanding.

        We also have a stockholder rights plan that provides for, among other
things, distributions to our stockholders upon an actual or prospective change
in control of our company. The plan has an anti-takeover effect because a
distribution under the plan may cause a substantial dilution to a person of
group that attempts to acquire a substantial number of our shares without
approval of our Board of Directors.


                                 USE OF PROCEEDS

        We will not receive any proceeds from the sale of the shares of common
stock by the selling stockholders in this offering, but we will receive the
exercise price upon the exercise of any warrants by the selling stockholders. We
plan to use any such proceeds for working capital.


                 DESCRIPTION OF OUR PREFERRED STOCK AND WARRANTS

        In March 2002, we sold 50,000 shares of a new series of convertible
preferred stock and warrants to purchase 1.6 million shares of our common stock
for $50.0 million to a group of investors led by ABRY Mezzanine Partners, L.P.


PREFERRED STOCK

        Liquidation Preference. Upon our liquidation, dissolution or winding up,
each holder of preferred stock will be entitled to be paid in cash, before any
distribution or payment is made on our common stock, an amount per share equal
to the greater of:



                                       9




        -       the liquidation value of such share, as described below, plus
                accrued and unpaid dividends (the "liquidation preference"),

        -       the amount that the holder would be entitled to receive in
                connection with a liquidation event had such holder converted
                the preferred stock, without regard to the 19.99% and 35%
                conversion limits described below, into shares of our common
                stock immediately prior to such liquidation event, and

        -       the product of the number of shares of common stock into which
                such share is convertible, without regard to the 19.99% and 35%
                conversion limits described below, immediately prior to the
                liquidation event and the applicable minimum share price, as
                described in "-- Redemption" below, as of the date of such
                liquidation event.

        The initial liquidation value per share of the preferred stock is
$1,000. If the preferred stock is not converted or redeemed prior to March 19,
2008, the liquidation value per share will increase to $4,570 if stockholder
approval of the issuance of the common stock and exercise of the warrants and an
increase in the number of authorized shares of common stock in our certificate
of incorporation has been obtained as of such date (the "stockholder approval")
or $9,140 if the stockholder approval has not been obtained. In the event of a
sale of the company or a change of control of the company (as defined in our
indentures governing our 10u% senior subordinated notes and 11"% senior secured
notes), unless a holder of the preferred stock requires us to redeem its shares
as described below, such holder may require us to pay it the full liquidation
preference of its preferred stock, subject to our satisfaction of our
obligations under the indentures governing our 10u% senior subordinated notes
and 11"% senior secured notes.

        Dividends. From the date of issuance until March 19, 2008, the dividends
on the preferred stock will accrue daily on the sum of the then applicable
liquidation value of the preferred stock and the accrued dividends thereon at an
annual rate of 7% per annum unless, at any time during such period, the
stockholder approval described in "-- Liquidation Preference" above has been
obtained. The dividend rate will decrease to 5% per annum upon receipt of the
stockholder approval. The dividend rate will decrease to 5% per annum
retroactive to the date of issuance of the preferred stock, to the extent of any
preferred stock still outstanding, if we obtain the stockholder approval by
September 19, 2002. Otherwise, the reduced dividend will only apply from and
after the date the stockholder approval is obtained. From and after March 18,
2008, the dividends will accrue at a rate of 15% per annum.

        Dividends are payable semi-annually in cash only if declared by our
board of directors and approved by the holders of no less than 75% of the
preferred stock then outstanding. The provisions of our debt instruments limit
our ability to pay dividends in cash, and we have no present intention to pay
cash dividends on the preferred stock.

        Upon the occurrence of certain triggering events, the dividend rate
increases by one percentage point, with further one percentage point increases
per quarter up to a maximum increase of five percentage points if any such event
is continuing. The triggering events include:

        -       failure to pay the liquidation preference or any cash dividends,
                to the extent declared, when due;

        -       failure to comply with certain specified covenants and
                obligations contained in the preferred stock certificate of
                designations or purchase agreement;

        -       failure to comply with certain specified covenants and
                obligations contained in the preferred stock certificate of
                designations or purchase agreement and such failure is not cured
                within 90 days;

        -       any representation or warranty in the preferred stock purchase
                agreement is proven to be false or incorrect in any material
                respect;

        -       any default that results in the acceleration of indebtedness,
                where the principal amount of such indebtedness, when added to
                the principal amount of all other indebtedness then in default,
                exceeds $5.0 million or final judgments for the payment of money
                aggregating more than $1.0 million (net of insurance proceeds)
                are entered against us and are not discharged, dismissed, or
                stayed pending appeal within 90 days after entry; and



                                       10




        -      we initiate or consent to proceedings under any applicable
               bankruptcy, insolvency, composition, or other similar laws or
               make a conveyance or assignment for the benefit of our creditors
               generally or any holders of any lien takes possession of, or a
               receiver, administrator, or other similar officer is appointed
               for, all or substantially all of our properties, assets or
               revenues and is not discharged within 90 days.

        Conversion. Each share of preferred stock is convertible at any time at
the holder's option into a number of shares of our common stock computed by
multiplying the number of shares of preferred stock to be converted by the
liquidation value of such shares (currently $1,000), plus accrued but unpaid
dividends thereon, divided by the conversion price. The conversion price for the
preferred stock initially is $7.61, subject to certain anti-dilution adjustments
described in the immediately following paragraph.

        Adjustments will be made to the conversion price if dilutive events
specified in the certificate of designations for the preferred stock occur
before the conversion of the preferred stock. These events include stock splits,
stock dividends and sales of common stock or securities convertible into common
stock at prices lower than either the conversion price of the preferred stock or
the volume weighted average closing share price of our common stock for the
preceding 30 trading days. If any of these events occur, the maximum number of
shares of common stock issuable upon conversion of the preferred stock would
increase, subject to the limitations described herein.

        The conversion price of the preferred stock will not be adjusted for an
issuance of common stock, regardless of the sales price, in the following
circumstances:

        -       subject to certain limits, related to the granting of common
                stock or options to purchase common stock to our employees
                pursuant to our stock option plans or the exercise of currently
                outstanding options;

        -       upon conversion of the preferred stock;

        -       upon exercise of the warrants;

        -       in certain situations, for consideration other than cash;

        -       subject to certain limits, to a bank or similar financial
                institution in connection with a loan or other indebtedness for
                borrowed money; or

        -       pursuant to an underwritten offering but only if the sale price
                is greater than the conversion price then in effect.

If we do not obtain the stockholder approval described in "-- Liquidation
Preference" above on or prior to June 28, 2002, the conversion price will be
automatically reduced by 20%. Thereafter, until we obtain the stockholder
approval, every 90 days the conversion price will be reduced by 20% of the
conversion price then in effect. In no event will the conversion price reduction
related to the failure to timely obtain the stockholder approval exceed 50% of
the conversion price that would have been in effect had we not failed to obtain
the stockholder approval by June 28, 2002. Upon our receipt of stockholder
approval of these proposals, the conversion price will be readjusted as if no
adjustments for failure to timely obtain the stockholder approval had occurred.

        In addition, if we fail to comply with specific covenants contained in
the agreement pursuant to which we sold the preferred stock and warrants, the
conversion price of the preferred stock will be reduced by $0.76 (adjusted for
stock splits and similar transactions). The conversion price will readjust to
what it would have been absent such breach (to the extent of any shares of
preferred stock still outstanding) once the breach is cured. In addition, no
such reduction to the conversion price will be made at any time that
representatives of the holders of preferred stock constitute a majority of our
board of directors. We currently intend to appoint representatives of the
holders of preferred stock to a majority of the board seats to avoid this
reduction in the conversion price.

        Finally, if our leverage ratio exceeds 7.5 to 1.0 for any quarterly
period beginning with the quarterly period ending on December 31, 2002, and such
leverage ratio remains in excess of 7.5 to 1.0 for a period of 90 days, the
conversion price of



                                       11




the preferred stock will be reduced by $0.76 (adjusted for stock splits and
similar transactions). The leverage ratio means the ratio of (1) consolidated
senior securities, defined as debt less cash balances in excess of $5.0 million
plus the accreted value of the preferred stock, to (2) earnings before interest,
taxes, depreciation and amortization, or EBITDA. Thereafter, until the leverage
ratio reduces below 7.5 to 1.0, every 90 days the conversion price will be
reduced by another $0.76 (adjusted for stock splits and similar transactions),
subject to a maximum reduction not to exceed $3.80 (adjusted for stock splits
and similar transactions). The conversion price will readjust to what it would
have been absent such event (to the extent of any shares of preferred stock
still outstanding) once the leverage ratio reduces below 7.5 to 1.0. In
addition, no such reduction to the conversion price will be made at any time
that representatives of the holders of preferred stock constitute a majority of
our board of directors. We currently intend to appoint representatives of the
holders of preferred stock to a majority of the board seats to avoid this
reduction in the conversion price.

        We may require the holders to convert the preferred stock into common
stock at any time provided that:

        -      no triggering event, as described in "-- Dividends" above or "--
               Registration Rights" below, has occurred and is continuing, and
               the stockholder approval has been obtained;

        -      the proposed conversion would not occur within 30 days of any
               period during which trading by our officers or directors is
               restricted by our policies or within 90 days of another
               conversion at our option;

        -      the volume weighted average closing share price of our common
               stock for the preceding 30 trading days is equal to or greater
               than the applicable minimum share price, as set forth in "--
               Redemption" below;

        -      the aggregate number of shares of our common stock issued upon
               conversion of the preferred stock at our election during any
               period of 12 consecutive weeks does not exceed 15% of the
               aggregate volume of our shares traded on the New York Stock
               Exchange during the 12 week period ended on the Saturday
               immediately preceding the notice date; and

        -      the aggregate number of shares of preferred stock converted at
               any one time does not exceed 12,500 shares (adjusted for stock
               splits and similar transactions).

        Redemption. We may redeem the preferred stock at any time, in whole or
in part, provided that the redemption price is equal to the amount the holders
of preferred stock would receive on an as-converted basis assuming a common
stock share price equal to the greater of the volume weighted average closing
share price of our common stock for the preceding 30 trading days and the
applicable minimum share price derived from the following schedule (as the same
may be adjusted for stock splits and similar transactions):



                                                                                       
        -      If being redeemed prior to the third anniversary                               $15.18
        -      If being redeemed after the third, but before the fourth anniversary           $17.51
        -      If being redeemed after the fourth, but before the fifth anniversary           $19.31
        -      If being redeemed after the fifth, but before the sixth anniversary            $23.26



        In the event of a sale of the company or a change of control of the
company (as defined in our indentures governing our 10u% senior subordinated
notes and 11"% senior secured notes), any holder of preferred stock may require
us to pay it the full redemption price as determined above for its preferred
stock, subject to our satisfaction of our obligations under the indentures
governing our 10u% senior subordinated notes and 11"% senior secured notes.

        Board Representation. The terms of the convertible preferred stock
entitle the holders thereof initially to three board seats. However, at such
time as the holders of convertible preferred stock cease to hold shares of
convertible preferred stock having an aggregate liquidation preference of at
least $25.0 million, they will lose the right to appoint the director for one of
these three board seats.

        Upon the occurrence of the following events, the holders of a majority
of the convertible preferred stock may nominate two additional members to our
board of directors and, if such triggering events have not been cured or waived
prior to the end of the next succeeding quarter, may appoint one less than a
minimum majority of our board of directors:




                                       12



        -       Failure to comply with certain specified covenants and
                obligations contained in the convertible preferred stock
                certificate of designations or purchase agreement and such
                failure is not cured within 90 days;

        -       Any representation or warranty in the convertible preferred
                stock purchase agreement is proven to be false or incorrect in
                any material respect; and

        -       Any default that results in the acceleration of indebtedness,
                where the principal amount of such indebtedness, when added to
                the principal amount of all other indebtedness then in default,
                exceeds $5.0 million or final judgments for the payment of money
                aggregating more than $1.0 million (net of insurance proceeds)
                are entered against us and are not discharged, dismissed, or
                stayed pending appeal within 90 days after entry.

        Upon the occurrence of the following events, the holders of a majority
of the convertible preferred stock may appoint one less than a minimum majority
of our board of directors:

        -       Failure to pay the liquidation preference or any cash dividends,
                to the extent declared, when due; and

        -       Failure to comply with certain specified covenants and
                obligations contained in the convertible preferred stock
                certificate of designations or purchase agreement.

        Upon the occurrence of the following event, the holders of a majority of
the convertible preferred stock may appoint a minimum majority of our board of
directors:

        -       We initiate or consent to proceedings under any applicable
                bankruptcy, insolvency, composition, or other similar laws or
                make a conveyance or assignment for the benefit of our creditors
                generally or any holders of any lien takes possession of, or a
                receiver, administrator, or other similar officer is appointed
                for, all or substantially all of our properties, assets or
                revenues and is not discharged within 90 days.

        On March 19, 2008, the holders of a majority of the convertible
preferred stock then outstanding, if any, will be entitled to appoint one less
than a minimum majority of our board of directors, subject to the right to
appoint a minimum majority of our board of directors as described in the
immediately preceding paragraph.

        At such time as the holders of convertible preferred stock cease to hold
shares of convertible preferred stock having an aggregate liquidation preference
of at least $10.0 million and such holders' beneficial ownership of our
convertible preferred stock and common stock constitutes less than 5% of the
aggregate voting power of our voting securities, the holders of convertible
preferred stock will no longer have the right to any directors.

        We have also granted the holders of the preferred stock the right to
have representatives attend meetings of our board of directors until such time
as they no longer own any preferred stock, warrants or shares of common stock
issued upon conversion of the preferred stock and exercise of the warrants.

        Voting Rights. Subject to the 19.99% and 35% voting limitations
described below, the holders of the preferred stock are entitled to vote on all
matters submitted to the vote of our stockholders, voting as a single class with
the common stockholders on an as-converted basis. In addition, we may not,
without the affirmative vote of the holders of not less than 75% of the
preferred stock then outstanding:

        -      amend, modify, restate, or repeal our certificate of
               incorporation or bylaws in any way that would alter the rights of
               the preferred stock or create any new class of capital stock
               having rights senior to or on parity with the preferred stock;

        -      authorize or issue any new or existing class of capital stock or
               any security convertible into or exchangeable for, or having
               rights to purchase, any shares of our stock having any preference
               or priority senior to or on parity with the preferred stock;

        -      increase or decrease the authorized number of shares of
               preferred stock;


                                       13



        -      reclassify our capital stock into shares having any preference
               or priority senior to or on parity with any preference or
               priority of the preferred stock;

        -      pay or declare any dividend on any shares of our capital stock
               (other than dividends on our common stock payable in additional
               shares of our common stock) or apply any of our assets to the
               redemption, retirement, purchase, or acquisition, directly or
               indirectly, of any shares of our capital stock, other than
               redemptions of the preferred stock and certain repurchases of
               shares of common stock from our current or former employees
               pursuant to contractual rights; or

        -      increase the size of our board of directors to more than 12
               directors, other than as may be required to satisfy the rights of
               the preferred stock described above. (The holders of the
               preferred stock have waived this limit until the upcoming annual
               meeting of stockholders.)

        Covenants. Without the prior approval of the holders of a majority of
the shares of preferred stock then outstanding we may not:

        -      use the proceeds from the sale of the preferred stock and
               warrants other than to refinance our credit facility and for
               general corporate purposes;

        -      make any restricted payment or restricted investment unless our
               leverage ratio is less than 6.0 to 1.0 and such restricted
               payment or restricted investment would otherwise be permitted
               under the indenture governing the 10u% senior subordinated notes
               after the application of a deemed restricted payment in an amount
               equal to the aggregate liquidation value of the preferred stock
               then outstanding;

        -      enter into any agreement (or amend or modify the terms of any
               existing agreement), other than our credit facility, the
               indentures governing the 10u% senior subordinated notes and 11"%
               senior secured notes, or any refinancing thereof to the extent
               the terms of such refinancing are not more restrictive than the
               credit facility or indentures, as applicable, which by its terms
               would restrict our ability to comply with the agreements related
               to the preferred stock;

        -      prior to the sixth anniversary of the issuance date, sell any of
               our assets, including the capital stock of our subsidiaries,
               unless such sale is in the ordinary course of business, does not
               exceed 5% of our total assets or EBITDA or, in the case of a sale
               of the capital stock of our subsidiaries, is between us or any of
               our wholly owned subsidiaries and another of our wholly owned
               subsidiaries;

        -      prior to the sixth anniversary of the issuance date, enter into
               any agreement with any affiliate (other than certain permitted
               affiliate transactions), unless such affiliate transaction is
               determined by a majority of our board of directors to be fair,
               reasonable and no less favorable to us than could have been
               obtained in an arm's length transaction with a non-affiliate and
               is approved by a majority of the disinterested members of our
               board of directors;

        -      materially alter our principal line of business or engage in any
               business unless such business is reasonably related to our
               principal line of business;

        -      grant any options to purchase our common stock or securities
               convertible into or exchangeable for shares of our common stock,
               other than options or securities granted pursuant to a stock
               option plan having an exercise price equal to or greater than the
               market value of our common stock on the date of such grant and
               accounting for, either individually or in the aggregate, not more
               than 15% of our outstanding common stock determined as of the day
               before the closing on a fully diluted, as-converted basis; or

        -      from and after the annual meeting of stockholders, increase the
               size of our board of directors (other than as may be required to
               satisfy the rights of the preferred stock described above) to
               greater than 12 directors.


                                       14



        From and after the sixth anniversary of the issuance date, in addition
to any of the actions described in the first, second, third, sixth, seventh and
eighth bullet points above, we may not, without the prior approval of the
holders of a majority of the shares of preferred stock then outstanding:

        -       sell any of our assets, including the capital stock of our
                subsidiaries;

        -       enter into any agreement with any affiliate;

        -       incur or permit to exist any indebtedness other than
                indebtedness existing as of such date and indebtedness incurred
                thereafter under the revolving credit facility in the ordinary
                course of business to provide for our working capital needs;

        -       acquire (by merging or consolidating with, or by purchasing an
                equity interest in or a portion of the assets of) any business,
                corporation, other business organization, or division thereof or
                otherwise acquire any material assets (other than inventory or
                other assets to be sold in the ordinary course of business); and

        -       hire or terminate any of our executive officers or modify or
                alter in any way the employment terms relating to any of our
                executive officers.

        In addition, the terms of the preferred stock require that we maintain a
ratio of consolidated senior securities, defined as debt less cash balances in
excess of $5.0 million plus the accreted value of the preferred stock, to EBITDA
of 7.5 to 1.0 for the twelve month period ending on the last day of December,
March, June, and September of each year beginning with the twelve month period
ending on December 31, 2002.

        Sales Rights. If, beginning with the quarterly period ending on December
31, 2002, our leverage ratio, as described above, exceeds 7.5 to 1.0 for four
consecutive fiscal quarters, then the holders of a majority of the preferred
stock have the right to cause us to seek a buyer for all of our assets or all of
our issued and outstanding capital stock. The holders of preferred stock will
not have this right if their representatives constitute a majority of our board
of directors. We currently intend to appoint representatives of the holders of
preferred stock to a majority of the board seats to avoid their having this
right.

        Preemptive Rights. Subject to specified limitations, the holders of the
preferred stock may participate in our future issuances of equity securities,
options or rights to acquire equity securities, or any securities convertible or
exchangeable for equity securities.

        Registration Rights. The agreements regarding the preferred stock
provide that we will file a shelf registration statement with the SEC covering
the common stock issued or issuable upon conversion of the preferred stock and
exercise of the warrants on May 3, 2002 and use our reasonable best efforts to
have the registration statement declared effective by the SEC as soon as
possible, but in any event not later than June 10, 2002. If the registration
statement is not filed on or before May 3, 2002, is not declared effective by
June 10, 2002, or ceases to be effective at any time prior to the sale of all of
the common stock covered by that registration statement, the dividend rate will
increase by one percentage point. This prospectus is a part of the shelf
registration statement that satisfies our obligations under the registration
rights of the holders of preferred stock. We have also granted the holders of
the preferred stock "piggyback" registration rights pursuant to a registration
rights agreement with those holders. These rights entitle the holders to notice
of the registration and to include, at our expense, their shares of common stock
in many of our registrations of our common stock.

        Indemnification Rights. We have agreed to indemnify the holders of the
preferred stock for any losses suffered by them as a result of a breach of a
warranty, representation, promise, agreement or covenant relating to their
purchase of the preferred stock and warrants or the execution, delivery,
performance or enforcement of the documents relating to such purchase.

        Limitations on the Rights of the Holders to Convert, Exercise, Vote or
Sell. The rights of each holder of preferred stock and the related warrants to
convert its shares of preferred stock, exercise its warrants, or sell shares of
its common stock acquired pursuant to any conversion or exercise are subject to
certain limitations, including:


                                       15




        -       Until the stockholder approval described in "-- Liquidation
                Preference" above is obtained and so long as our common stock is
                listed on the New York Stock Exchange, the holders of preferred
                stock and warrants may not convert their preferred stock or
                exercise their warrants into more than an aggregate of 19.99% of
                our common stock outstanding as of March 18, 2002 (the day
                before the issuance of the preferred stock and warrants), or
                6,378,874 shares of common stock (adjusted for stock splits and
                similar transactions). The holders of the preferred stock are
                similarly limited to an aggregate of 19.99% of the voting power
                outstanding as of March 18, 2002 (the day before the issuance of
                the preferred stock and warrants) with respect to such preferred
                stock or common stock issued upon exercise of the warrants.

        -       So long as any of our 10u% senior subordinated notes or 11"%
                senior secured notes are outstanding, no holder of preferred
                stock or warrants may convert its preferred stock or exercise
                its warrants to the extent that, after giving effect to such
                conversion or exercise, such holder of preferred stock,
                individually or collectively with all other holders of preferred
                stock are entitled to direct the votes with respect to an excess
                of 35% of the aggregate voting equity interests. Collectively,
                the holders of the preferred stock and warrants are similarly
                limited to 35% of the aggregate voting power outstanding.

        -       Until the stockholder approval described in "-- Liquidation
                Preference" above is obtained, if any holder of preferred stock
                or warrants intends to convert its preferred stock or exercise
                its warrants, the holder must notify the other holders of
                preferred stock or warrants of such intention. The other holders
                may then elect to participate on a pro rata basis in such
                conversion or exercise, based on the number of shares of
                preferred stock or warrants held by the holder electing to
                participate in such conversion or exercise.

        -       If any holder of preferred stock or warrants intends to convert
                its preferred stock, intends to exercise its warrants or intends
                to sell in a public sale any shares of common stock acquired
                through such conversion or exercise to one or more third parties
                when the market price of the common stock is below the
                applicable prices listed on the schedule set forth under "--
                Redemption" above, the holder must notify each of the other
                holders of preferred stock or warrants of such intention. The
                other holders may then elect to participate, on a pro rata
                basis, in such conversion, exercise or sale based on the number
                of shares of common stock held by the holders electing to
                participate in such conversion, exercise or sale.

        -       The purchasers of the preferred stock have agreed among
                themselves that if they intend to sell more than 10,000 shares
                of preferred stock (adjusted for stock splits and similar
                transactions) to one or more third parties, the party intending
                such a sale must notify the other holders of preferred stock of
                such intention. Upon receipt of such notice, the other holders
                may then elect to participate, on identical terms and on a pro
                rata basis, in such sale based on the number of shares of
                preferred stock held by the holders electing to participate in
                such sale.


WARRANTS

        The initial exercise price of the warrants is $7.61 per share. The
warrants are subject to anti-dilution and other adjustments that mirror those
applicable to the convertible preferred stock. The warrants are immediately
exercisable and expire 10 years after issuance.


CLOSING FEES AND OTHER PAYMENTS

        In connection with the closing of the sale of our preferred stock and
related warrants, we paid the purchasers $750,000, or 1.5% of the purchase
price.


                              SELLING STOCKHOLDERS

        In March 2002, we sold 50,000 shares of a new series of convertible
preferred stock and warrants to purchase 1.6 million shares of our common stock
for $50 million to the selling stockholders named below. The shares of our
common stock registered for resale in the registration statement of which this
prospectus is a part are the shares into which the preferred stock is
convertible and the warrants are exercisable.



                                       16



        The number of shares registered in the registration statement of which
this prospectus is a part and the number of shares offered in this prospectus
represents our bona fide estimate of the number of shares issuable upon
conversion of the convertible preferred stock and exercise of the warrants. The
number of shares that will ultimately be issued to the selling stockholders
cannot be determined at this time because it depends on: (1) whether the holders
of the preferred stock elect to convert the preferred stock into shares of
common stock; (2) whether we elect to require the conversion of the preferred
stock if certain conditions are met; (3) whether the holders of the warrants
exercise their warrants; (4) the conversion price of the preferred stock and the
exercise price of the warrants at the time of conversion of the preferred stock
and exercise of the warrants; (5) the period for which the preferred stock
remains outstanding; and (6) the amount of dividends that accrue to the
liquidation preference of the preferred stock before conversion.

        The table below sets forth information regarding ownership of our common
stock by the selling stockholders and the number of shares that may be sold by
them under this prospectus. The number of shares set forth in the table as being
held by the selling stockholders includes the number of shares of common stock
that are issuable upon conversion of the preferred stock and the exercise of the
warrants as of April 12, 2002. The number of shares set forth on the table as
being offered hereby represents the total number of shares we have registered
for resale by the selling stockholders based on our bona fide estimate of the
number of shares of common stock that we will need to issue to the selling
stockholders on conversion of the preferred stock and exercise of the warrants
(subject, in each case, to antidilution adjustments) and payment of all
dividends on the preferred stock. This amount includes 100% of the number of
shares of common stock issuable as of April 12, 2002 upon conversion of the
preferred stock and exercise of the warrants and 100% of the number of shares we
believe will need to be issued due to the increase in the liquidation preference
of the preferred stock as the dividends on the preferred stock accrue. However,
the actual number of shares of common stock issuable upon conversion of the
preferred stock and exercise of the warrants is indeterminable, and could be
materially more or less than the amounts listed on the table due to possible
conversion and exercise price adjustments. Because the selling stockholders may
offer all or some portion of the common stock listed in the table pursuant to
this prospectus or otherwise, no estimate can be given as to the amount of
common stock that will be held by the selling stockholders upon termination of
the offering. The selling stockholders may sell all, part, or none of the shares
listed. The number of shares owned by the selling stockholders is determined by
rules promulgated by the Commission for beneficial ownership and is not
necessarily indicative of ownership for any other purpose.

        None of the selling stockholders has had any position, office or other
material relationship with us, other than as a security holder, during the past
three years; however, the terms of our preferred stock grant the holders of the
preferred stock the right to appoint three directors to our board. See
"Description of Preferred Stock and Warrants; Preferred Stock -- Board
Representation" above. Two of these directors are affiliated with ABRY Mezzanine
Partners, L.P. and the third is affiliated with the Sandler entities listed
below.



                                                     Shares      Shares of Common       Shares
                                                  Owned Prior      Stock Offered      Owned After
Name of Selling Shareholder                       To Offering          Hereby          Offering
--------------------------------------------------------------------------------------------------
                                                                                     
ABRY Mezzanine Partners, L.P.                    4,902,181(1)      5,322,809(2)               0
ABACUS Master Fund, Ltd.                           817,030(3)        887,135(4)               0
Sandler Capital Partners V, L.P.                 1,748,281(5)      1,898,291(6)               0
Sandler Capital Partners V FTE, L.P.               638,591(7)        693,385(8)               0
Sandler Captial Partners V Germany, L.P.            64,219(9)        69,729(10)               0


--------
(1)     Includes 3,942,181 shares issuable upon conversion of 30,000 shares of
        preferred stock based on a conversion price of $7.61 per share, plus
        960,000 shares issuable upon the exercise of warrants.

(2)     Includes an additional 420,628 shares that may be issued upon conversion
        of the preferred stock as dividends accrue to the liquidation preference
        over the next two years.

(3)     Includes 657,030 shares issuable upon conversion of 5,000 shares of
        preferred stock based on a conversion price of $7.61 per share, plus
        160,000 shares issuable upon the exercise of warrants.

(4)     Includes an additional 70,105 shares that may be issued upon conversion
        of the preferred stock as dividends accrue to the liquidation preference
        over the next two years.


                                       17




(5)     Includes 1,405,913 shares issuable upon conversion of 10,699 shares of
        preferred stock based on a conversion price of $7.61 per share, plus
        342,368 shares issuable upon the exercise of warrants.

(6)     Includes an additional 150,010 shares that may be issued upon conversion
        of the preferred stock as dividends accrue to the liquidation preference
        over the next two years.

(7)     Includes 513,535 shares issuable upon conversion of 3,908 shares of
        preferred stock based on a conversion price of $7.61 per share, plus
        125,056 shares issuable upon the exercise of warrants.

(8)     Includes an additional 54,794 shares that may be issued upon conversion
        of the preferred stock as dividends accrue to the liquidation preference
        over the next two years.

(9)     Includes 51,643 shares issuable upon conversion of 393 shares of
        preferred stock based on a conversion price of $7.61 per share, plus
        12,576 shares issuable upon the exercise of warrants.

(10)    Includes an additional 5,510 shares that may be issued upon conversion
        of the preferred stock as dividends accrue to the liquidation preference
        over the next two years.


                              PLAN OF DISTRIBUTION

        We are registering shares of common stock issuable upon conversion of
the preferred stock and upon exercise of the warrants to permit the resale of
these shares of common stock by the holders of the preferred stock and warrants
from time to time after the date of this prospectus. We will not receive any of
the proceeds from the sale by the selling stockholders of the shares of common
stock, although we will receive the exercise price if any of the warrants are
exercised. We will bear all fees and expenses incident to our obligation to
register the shares of common stock.

        The selling stockholders may sell all or a portion of the common stock
beneficially owned by them and offered through the prospectus from time to time
directly or through one or more underwriters, broker-dealers or agents. If the
common stock is sold through underwriters or broker-dealers, the selling
stockholder will be responsible for underwriting discounts or commissions or
agent's commissions. The common stock may be sold in one or more transactions or
other legally available means at fixed prices, at prevailing market prices at
the time of the sale, at varying prices determined at the time of sale, or at
negotiated prices. These sales may be effected in the following types of
transactions:

        -       on any national securities exchange or quotation service on
                which the securities may be listed or quoted at the time of
                sale, including The New York Stock Exchange in the case of the
                shares of common stock;

        -       in the over-the-counter market;

        -       in transactions otherwise than on these exchanges or systems or
                in the over-the-counter market; or

        -       through the writing of options.

        These transaction may include block transactions or crosses. Crosses are
transactions in which the same broker acts as an agent on both sides of the
trade.

        In connection with sales of the common stock or otherwise, the selling
stockholders may enter into hedging transactions with broker-dealers that may in
turn engage in short sales of common stock in the course of hedging in positions
they assume. The selling stockholders may also sell shares of common stock short
and deliver shares of common stock to close short positions, or loan or pledge
shares of common stock to broker-dealers that in turn may sell those shares. If
the selling stockholders effect such transactions by selling shares of common
stock to or through underwriters, broker-dealers or agents, those underwriters,
broker-dealers or agents may receive commissions in the form of discounts,
concessions or commissions from the selling stockholders or commissions from the
purchasers of the shares of common stock for whom they may act as agent or to
whom they may sell as principal, which discounts, concessions or commissions as
to particular underwriters, broker-dealers or agents may be in excess of those
customary in the types of transactions involved.



                                       18


        The selling stockholders may from time to time pledge or grant a
security interest in some or all of the shares of preferred stock or common
stock owned by them. If the selling stockholders default in the performance of
their secured obligations, the pledgees or secured parties may offer and sell
the shares of common stock from time to time under this prospectus or an
amendment to this prospectus under Rule 424(b)(3) or other applicable provision
of the Securities Act amending the list of selling stockholders to include the
pledgee, transferee or other successors in interest as selling stockholders
under this prospectus.

        The selling stockholders and any broker-dealer participating in this
distribution of shares of common stock may be deemed to be "underwriters" within
the meaning of the Securities Act, and any commission paid, or any discounts
allowed to the broker-dealer may be deemed to be underwriting discounts or
commissions under the Securities Act. At the time a particular offering of the
shares of common stock is made, a prospectus supplement, if required, will be
distributed which will set forth the aggregate amount of shares of common stock
being offered and the terms of the offering, including the name or names of any
broker-dealers or agents, any discounts, commissions and other terms
constituting compensation from the selling stockholder and any discounts,
commissions or concessions allowed or reallowed or paid to broker-dealers.

        Under the securities laws of some states, the shares of common stock may
be sold in such states only through registered or licenses brokers or dealers.
In addition, in some states the shares of common stock may not be sold unless
the shares have been registered or qualified for sale in the state of an
exemption from registration or qualification is available and is complied with.

        We do not know whether any selling stockholder will sell any or all of
the shares of common stock registered by the shelf registration statement of
which this prospectus forms a part.

        We will pay all expenses of the registration of the shares of common
stock under the registration rights agreement, including SEC filing fees and
expenses of compliance with state securities or "blue sky" laws, except that the
selling stockholders will pay any underwriting discounts and selling
commissions. We expect that our expenses for this offering, including primarily
filing fees and legal expenses, will be approximately $20,000.

        We will indemnify the selling stockholders against liabilities,
including some liabilities under the Securities Act, in accordance with the
registration rights agreement. We will be indemnified by the selling
stockholders against civil liabilities, including liabilities under the
Securities Act, that may arise from any written information furnished to us by
the selling stockholders for use in this prospectus, in accordance with the
related registration rights agreement.

        Once sold under the shelf registration statement, of which this
prospectus forms a part, the shares of common stock will be freely tradable in
the hands of persons other than our affiliates.


                                  LEGAL MATTERS

        The validity of the issuance of the shares offered by this prospectus
will be passed upon for Penton by Jones, Day, Reavis & Pogue, Cleveland, Ohio.




                                       19



                                     PART II


                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

        The expenses in connection with the issuance and distribution of the
securities being registered, other than underwriting discounts and commissions,
are estimated as follows:



                                                                         
 Securities and Exchange Commission Registration Fee ....................     $6,141.63
 Transfer Agent and Registrar Fees*......................................        500.00
 Legal Fees and Expenses*................................................     10,000.00
 Accounting Fees and Expenses*...........................................      3,000.00
 Printing Expenses*......................................................        200.00
 Miscellaneous*..........................................................        158.37
                 Total ..................................................    $20,000.00
                                                                             ----------

-------------------
* Estimated


ITEM 15.INDEMNIFICATION OF DIRECTORS AND OFFICERS

ELIMINATION OF LIABILITY

        Penton Media, Inc.'s certificate of incorporation provides that, to the
fullest extent permitted by the DGCL as the same exists or may hereafter be
amended, no director of Penton Media, Inc. shall be liable to it or its
stockholders for monetary damages for breach of fiduciary duty as a director.
Any repeal or modification of this provision will not adversely affect any right
or protection of a director of Penton Media, Inc. existing at the time of that
repeal or modification.

INDEMNIFICATION AND INSURANCE

        Section 145 of the DGCL contains provisions permitting (and, in some
situations, requiring) Delaware corporations such as Penton Media, Inc. to
provide indemnification to their officers and directors for losses and
litigation expense incurred in connection with, among other things, their
service to the corporation in those capacities. Penton Media, Inc.'s certificate
of incorporation contains provisions requiring indemnification by Penton Media,
Inc. of its directors, officers, and employees to the fullest extent permitted
by law. Among other things, these provisions provide that Penton Media, Inc. is
required to indemnify any person who was or is a party or is threatened to be
made a party to any threatened, pending, or completed action, suit, or
proceeding, whether civil, criminal, administrative, or investigative (including
any action by or in the right of Penton Media, Inc.) (a "Proceeding") by reason
of the fact that such person is or was a director, officer, or employee of
Penton Media, Inc., or is or was serving at the request of Penton Media, Inc. as
a director, officer or employee of another corporation, partnership, joint
venture, trust, or other enterprise (including service with respect to any
employee benefit plan) against expenses (including attorneys' fees), judgments,
fines, ERISA excise taxes, penalties, and amounts paid in settlement actually
and reasonably incurred by such person in connection with such Proceeding to the
fullest extent permitted by the DGCL, as the same exists or may be amended (but,
in the case of any such amendment, only to the extent that such amendment
permits Penton Media, Inc. to provide broader indemnification rights than such
law permitted Penton Media, Inc. to provide prior to such amendment). These
provisions also provide for the advance payment of fees and expenses reasonably
incurred by the director, officer, or employee in defense of any such
Proceeding, subject to reimbursement by the director, officer, or employee if it
is ultimately determined that such director, officer, or employee is not
entitled to be indemnified by Penton Media, Inc. In addition, the Certificate of
Incorporation authorizes Penton Media, Inc. to purchase insurance for its
directors, officers, and employees insuring them against certain risks as to
which Penton Media, Inc. may be unable lawfully to indemnify them. Penton Media,
Inc. maintains insurance coverage for its directors, officers and employees as
well as insurance coverage to reimburse Penton Media, Inc. for potential costs
of its corporate indemnification of directors, officers and employees.


                                      II-1




ITEM 16.EXHIBITS



EXHIBIT
NUMBER             DESCRIPTION OF DOCUMENT
------             -----------------------
                
3.1                Certificate of Designations, Preferences and Rights of the Series B
                   Convertible Preferred Stock of Registrant, incorporated by reference
                   to Exhibit 3.1 to the Registrant's Form 8-K dated and filed with the
                   SEC on March 19, 2002.

4.1                Form of Warrant to purchase common stock of Registrant, incorporated
                   by reference to Exhibit 4.1 to the Registrant's Form 8-K dated and
                   filed with the SEC on March 19, 2002.

4.2                Amendment No. 1, dated as of March 18, 2002, to the Rights Agreement,
                   by and between Registrant and National City Bank, as successor Rights
                   Agent, incorporated by reference to Exhibit 4.2 to the Registrant's
                   Form 8-K dated and filed with the SEC on March 19, 2002.

5.1*               Opinion of Jones, Day, Reavis & Pogue.

10.1               Amended and Restated Series B Convertible Preferred Stock and Warrant
                   Purchase Agreement, incorporated by reference to Exhibit 10.1 to the
                   Registrant's Form 8-K dated and filed with the SEC on March 19, 2002.

10.2               Registration Rights Agreement, incorporated by reference to Exhibit 10.2
                   to the Registrant's Form 8-K dated and filed with the SEC on March 19,
                   2002.

23.1+               Consent of PricewaterhouseCoopers LLP.

23.2*              Consent of Jones, Day, Reavis & Pogue (contained in Exhibit 5.1).

24.1*              Powers of Attorney (see pages I-4 to I-5).



*     Filed herewith.

+     To be filed by amendment.

ITEM 17.UNDERTAKINGS

     A. The undersigned registrant hereby undertakes:

        (1)     To file, during any period in which offers or sales are being
made, a post-effective amendment to this registration statement:

                (i)     To include any prospectus required by section 10(a)(3)
        of the Securities Act of 1933;

                (ii)    To reflect in the prospectus any facts or events arising
        after the effective date of the registration statement (or the most
        recent post-effective amendment thereof) which, individually or in the
        aggregate, represent a fundamental change in the information set forth
        in the registration statement. Notwithstanding the foregoing, any
        increase or decrease in the volume of securities offered (if the total
        dollar value of securities offered would not exceed that which was
        registered) and any deviation from the low or high end of the estimated
        maximum offering range may be reflected in the form of prospectus filed
        with the Commission pursuant to Rule 424(b) if, in the aggregate, the
        changes in volume and price represent no more than a 20% change in the
        maximum aggregate offering price set forth in the "Calculation of
        Registration Fee" table in the effective registration statement;

                (iii)   To include any material information with respect to the
        plan of distribution not previously disclosed in the registration
        statement or any material change to such information in the registration
        statement;

provided, however, that paragraphs (1)(i) and (1)(ii) do not apply if the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the registrant pursuant to
Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are
incorporated by reference in the registration statement.

        (2)     That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such



                                      II-2



securities at that time shall be deemed to be the initial bona fide offering
thereof.

        (3)     To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

     B. The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange
Act) that is incorporated by reference in this registration statement shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be determined to
be the initial bona fide offering thereof.

     C. Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission,
such indemnification is against public policy as expressed in said Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

     D. The undersigned registrant hereby undertakes that:

        (1)     For purposes of determining any liability under the Securities
Act of 1933, the information omitted from the form of prospectus filed as a part
of this registration statement in reliance upon Rule 430A and contained in a
form of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or
497(h) under the Securities Act shall be deemed to be part of this registration
statement as of the time it was declared effective.

        (2)     For the purpose of determining any liability under the
Securities Act of 1933, each post-effective amendment that contains a form of
prospectus shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof.

     E. The undersigned registrant hereby undertakes to file an application for
the purpose of determining the eligibility of the trustee to act under
Subsection (a) of Section 310 of the Trust Indenture Act in accordance with the
rules and regulations prescribed by the Commission under Section 305(b)(2) of
the Act.


                                      II-3




                                   SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this registrant
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Cleveland, the State of Ohio, on April 12, 2002.


                                      PENTON MEDIA, INC.


                                      By:     /s/ Joseph G. NeCastro
                                         --------------------------------------
                                      Name:   Joseph G. NeCastro
                                      Title:  Chief Financial Officer


                                POWER OF ATTORNEY

        KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Thomas L. Kemp, Joseph G. NeCastro and Preson L.
Vice and each of them, his or her true and lawful attorneys-in- fact and agents,
with full power of substitution and resubstitution, for him or her and in his or
her name, place and stead, in any and all capacities, to sign and file any and
all amendments (including post-effective amendments) to this Registration
Statement, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
and about the premises, as fully to all intents and purposes as he or she might
or could do in person, hereby ratifying and confirming all that said attorneys-
in-fact and agents or either of them, or their or his or her substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

                                     * * * *

        Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.




SIGNATURE                                TITLE                                           DATE
---------                                -----                                           ----

                                                                                  
        /s/ Thomas L. Kemp               Chief Executive Officer                         April 12, 2002
------------------------------------     and Director (Principal Executive Officer)
Thomas L. Kemp



        /s/ Joseph G. NeCastro           Chief Financial Officer                         April 12, 2002
------------------------------------     (Principal Financial Officer)
Joseph G. NeCastro


        /s/ Jocelyn A. Bradford          Vice President and Controller                   April 12, 2002
------------------------------------     (Principal Accounting Officer)
Jocelyn A. Bradford


        /s/ Daniel J. Ramella            Director                                        April 12, 2002
------------------------------------
Daniel J. Ramella


                                         Director                                         April 12, 2002
------------------------------------
David B. Nussbaum


        /s/ Paul W. Brown                Director                                         April 12, 2002
------------------------------------
Paul W. Brown




                                      II-4








                                                                            
        /s/ R. Douglas Greene            Director                                  April 12, 2002
-----------------------------------
R. Douglas Greene


        /s/ John J. Meehan               Director                                  April 12, 2002
-----------------------------------
John J. Meehan


        /s/ Edward J. Schwartz           Director                                  April 12, 2002
-----------------------------------
Edward J. Schwartz


        /s/ William B. Summers           Director                                  April 12, 2002
-----------------------------------
William B. Summers


        /s/ Richard B. Swank             Director                                  April 12, 2002
-----------------------------------
Richard B. Swank


        /s/ Daniel C. Budde              Director                                  April 12, 2002
-----------------------------------
Daniel C. Budde

        /s/ Peni Garber                  Director                                  April 12, 2002
-----------------------------------
Peni Garber


        /s/ Hannah C. Stone              Director                                  April 12, 2002
-----------------------------------
Hannah C. Stone


        /s/ King Harris                  Director                                  April 12, 2002
-----------------------------------
King Harris





                                      II-5





                                  EXHIBIT INDEX



EXHIBIT
NUMBER             DESCRIPTION OF DOCUMENT
------             -----------------------
             
3.1             Certificate of Designations, Preferences and Rights of the Series B
                Convertible Preferred Stock of Registrant, incorporated by reference
                to Exhibit 3.1 to the Registrant's Form 8-K dated and filed with the
                SEC on March 19, 2002.

4.1             Form of Warrant to purchase common stock of Registrant, incorporated
                by reference to Exhibit 4.1 to the Registrant's Form 8-K dated and
                filed with the SEC on March 19, 2002.

4.2             Amendment No. 1, dated as of March 18, 2002, to the Rights Agreement,
                by and between Registrant and National City Bank, as successor Rights
                Agent, incorporated by reference to Exhibit 4.2 to the Registrant's
                Form 8-K dated and filed with the SEC on March 19, 2002.

5.1*            Opinion of Jones, Day, Reavis & Pogue.

10.1            Amended and Restated Series B Convertible Preferred Stock and Warrant
                Purchase Agreement, incorporated by reference to Exhibit 10.1 to the
                Registrant's Form 8-K dated and filed with the SEC on March 19, 2002.

10.2            Registration Rights Agreement, incorporated by reference to
                Exhibit 10.2 to the Registrant's Form 8-K dated and filed with
                the SEC on March 19, 2002.

23.1+           Consent of PricewaterhouseCoopers LLP.

23.2*           Consent of Jones, Day, Reavis & Pogue (contained in Exhibit 5.1).

24.1*           Powers of Attorney (see pages I-4 to I-5).


*     Filed herewith.

+     To be filed by amendment.


                                      III