Exhibit 25.1

                                CONFORMED COPY

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                                   FORM T-1

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                           STATEMENT OF ELIGIBILITY
                  UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                   CORPORATION DESIGNATED TO ACT AS TRUSTEE

                     CHECK IF AN APPLICATION TO DETERMINE
                     ELIGIBILITY OF A TRUSTEE PURSUANT TO
                       SECTION 305(b)(2)           [_]
__________________________________________________

                             THE BANK OF NEW YORK
                  (Exact name of trustee as specified in its charter)

 
                                                                                                                   
New York                                                                          13-5160382
(State of incorporation                                  (I.R.S. employer
if not a U.S. national bank)                             identification no.)

48 Wall Street, New York, N.Y.                           10286
(Address of principal executive offices)  (Zip code)
 
__________________________________________________

                         ADVANSTAR COMMUNICATIONS INC.
              (Exact name of obligor as specified in its charter)



                                                                           
New York                                                                         59-2757389
(State or other jurisdiction of                  (I.R.S. employer
incorporation or organization)                   identification no.)
 


 
 
                         Table of Additional Registrants
                         --------------------------------
                                                                      
Advanstar Holdings, Inc.                  Delaware         94-3243999
Art Expositions International, Inc.       Delaware         41-1612863
Expocon Management Associates, Inc.       Connecticut      06-0984189
On Demand Marketing, Inc.                 Connecticut      06-1382851
Men's Apparel Guild in
 California, Inc.                                          California         95-1568605
MagicKids, Inc.                                            California         33-0753421
Technology Events Company, LLC            Connecticut      06-1432203
Applied Business teleCommunications       California       94-2896012
 
7500 Old Oak Boulevard
Cleveland, Ohio                                                               44130-3369
(Address of principal executive offices)  (Zip code)


                            ______________________

                   9-1/4% Senior Subordinated Notes due 2008
                      (Title of the indenture securities)
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1.   GENERAL INFORMATION.  FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:

     (A)  NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING AUTHORITY TO WHICH
          IT IS SUBJECT.
 


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     Name                                       Address
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     Superintendent of Banks of the State of    2 Rector Street, New York,
     New York                                   N.Y.  10006, and Albany, N.Y. 12203
 
     Federal Reserve Bank of New York           33 Liberty Plaza, New York, N.Y.  10045
 
     Federal Deposit Insurance Corporation      Washington, D.C.  20429
 
     New York Clearing House Association        New York, New York 10005

 
     (B)  WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

     Yes.

2.   AFFILIATIONS WITH OBLIGOR.
 
     IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
     AFFILIATION.

     None.

16.  LIST OF EXHIBITS.

     EXHIBITS IDENTIFIED IN PARENTHESES BELOW, ON FILE WITH THE COMMISSION, ARE
     INCORPORATED HEREIN BY REFERENCE AS AN EXHIBIT HERETO, PURSUANT TO RULE 7A-
     29 UNDER THE TRUST INDENTURE ACT OF 1939 (THE "ACT") AND 17 C.F.R.
     229.10(D).

     1.   A copy of the Organization Certificate of The Bank of New York
          (formerly Irving Trust Company) as now in effect, which contains the
          authority to commence business and a grant of powers to exercise
          corporate trust powers.  (Exhibit 1 to Amendment No. 1 to Form T-1
          filed with Registration Statement No. 33-6215, Exhibits 1a and 1b to
          Form T-1 filed with Registration Statement No. 33-21672 and Exhibit 1
          to Form T-1 filed with Registration Statement No. 33-29637.)

     4.   A copy of the existing By-laws of the Trustee.  (Exhibit 4 to Form T-1
          filed with Registration Statement No. 33-31019.)

     6.   The consent of the Trustee required by Section 321(b) of the Act.
          (Exhibit 6 to Form T-1 filed with Registration Statement No. 33-
          44051.)

     7.   A copy of the latest report of condition of the Trustee published
          pursuant to law or to the requirements of its supervising or examining
          authority.

 
                                CONFORMED COPY


                                      SIGNATURE



     Pursuant to the requirements of the Act, the Trustee, The Bank of New York,
a corporation organized and existing under the laws of the State of New York,
has duly caused this statement of eligibility to be signed on its behalf by the
undersigned, thereunto duly authorized, all in The City of New York, and State
of New York, on the 8th day of June, 1998.


                                         THE BANK OF NEW YORK



                                         By:     /s/WALTER N. GITLIN
                                             ---------------------------
                                           Name:  WALTER N. GITLIN
                                           Title: VICE PRESIDENT

 
                                                                       Exhibit 7

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                      Consolidated Report of Condition of

                             THE BANK OF NEW YORK

                   of 48 Wall Street, New York, N.Y. 10286 
          And Foreign and Domestic Subsidiaries, a member of the Federal Reserve
System, at the close of business December 31, 1997, published in accordance with
a call made by the Federal Reserve Bank of this District pursuant to the
provisions of the Federal Reserve Act.



                                                       Dollar Amounts    
ASSETS                                                  in Thousands     
                                                                   
Cash and balances due from depos-                                        
  itory institutions:                                                    
  Noninterest-bearing balances and                                       
   currency and coin....................                  $ 5,742,986    
  Interest-bearing balances.............                    1,342,769    
Securities:                                                              
  Held-to-maturity securities...........                    1,099,736    
  Available-for-sale securities.........                    3,882,686    
Federal funds sold and Securities pur-                                   
  chased under agreements to resell.....                    2,568,530    
Loans and lease financing                                                
  receivables:                                                           
  Loans and leases, net of unearned                                      
    income .............................                   35,019,608
  LESS: Allowance for loan and                                           
    lease losses .......................                      627,350
  LESS: Allocated transfer risk                                          
    reserve.............................                            0
  Loans and leases, net of unearned                                      
    income, allowance, and reserve                         34,392,258    
Assets held in trading accounts.........                    2,521,451    
Premises and fixed assets (including                                     
  capitalized leases)...................                      659,209    
Other real estate owned.................                       11,992    
Investments in unconsolidated                                            
  subsidiaries and associated                                            
  companies.............................                      226,263    
Customers' liability to this bank on                                     
  acceptances outstanding...............                    1,187,449    
Intangible assets.......................                      781,684    
Other assets............................                    1,736,574    
                                                          -----------    
Total assets............................                  $56,153,587    
                                                          ===========     
 

 
 
                                                        
LIABILITIES
Deposits:
  In domestic offices...................                  $27,031,362    
  Noninterest-bearing ..................                   11,899,507
  Interest-bearing .....................                   15,131,855
  In foreign offices, Edge and                                         
  Agreement subsidiaries, and IBFs......                   13,794,449  
  Noninterest-bearing ..................                      590,999
  Interest-bearing .....................                   13,203,450
Federal funds purchased and Securities                                 
  sold under agreements to repurchase...                    2,338,881  
Demand notes issued to the U.S.                                        
  Treasury..............................                      173,851  
Trading liabilities.....................                    1,695,216  
Other borrowed money:                                                  
  With remaining maturity of one year                                  
    or less.............................                    1,905,330  
  With remaining maturity of more than                                 
    one year through three years........                            0  
  With remaining maturity of more than                                 
    three years.........................                       25,664  
Bank's liability on acceptances exe-                                   
  cuted and outstanding.................                    1,195,923  
Subordinated notes and debentures.......                    1,012,940  
Other liabilities.......................                    2,018,960  
                                                           ----------  
Total liabilities.......................                   51,192,576  
                                                           ----------  
                                                                       
EQUITY CAPITAL                                                         
Common stock............................                    1,135,284  
Surplus.................................                      731,319  
Undivided profits and capital                                          
  reserves..............................                    3,093,726  
Net unrealized holding gains                                           
  (losses) on available-for-sale                                       
  securities............................                       36,866  
Cumulative foreign currency transla-                                   
  tion adjustments......................                      (36,184) 
                                                           ----------  
Total equity capital....................                    4,961,011  
                                                           ----------  
Total liabilities and equity                                           
  capital ..............................                  $56,153,587  
                                                          ===========   
 

     I, Robert E. Keilman, Senior Vice President and Comptroller of the above-
named bank do hereby declare that this Report of Condition has been prepared in
conformance with the instructions issued by the Board of Governors of the
Federal Reserve System and is true to the best of my knowledge and belief.

                                                            Robert E. Keilman

 
                                                                       Exhibit 7

     We, the undersigned directors, attest to the correctness of this Report of
Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been prepared in conformance with the instructions
issued by the Board of Governors of the Federal Reserve System and is true and
correct.

                         ]
     Thomas A. Renyi     |
     Alan R. Griffith    |   Directors
     J. Carter Bacot     |
                         ]

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