Exhibit 21 LIST OF SUBSIDIARIES Jurisdiction of Percentage of Name Incorporation Parent Ownership ============================================================================================================ K-III Prime Corporation Delaware K-III Communications Corporation 100% Intertec Publishing Corporation Delaware K-III Prime Corporation 100% Newbridge Communications, Inc. Delaware K-III Prime Corporation 100% K-III Directory Corporation Delaware K-III Prime Corporation 100% R.E.R. Publishing Corporation New York K-III Directory Corporation 100% Intermodal Publishing Corporation, Ltd. New York K-III Directory Corporation 100% Weekly Reader Corporation Delaware K-III Prime Corporation 100% K-III Reference Corporation Delaware K-III Prime Corporation 100% Funk & Wagnalls Yearbook Corp. Delaware K-III Reference Corporation 100% Krames Communications Incorporated Delaware K-III Prime Corporation 100% K-III Holdings Corporation III Delaware K-III Prime Corporation 100% Daily Racing Form, Inc. Delaware K-III Holdings Corporation III 100% DRF Finance, Inc. Delaware Daily Racing Form, Inc. 100% Daily Racing Form of Canada Ltd. Canada Daily Racing Form, Inc. 100% K-III Magazine Corporation Delaware K-III Holdings Corporation III 100% K-III Magazine Finance Corporation Delaware K-III Magazine Corporation 100% Nelson Information, Inc. Delaware K-III Prime Corporation 100% The Katharine Gibbs Schools, Inc. Delaware K-III Prime Corporation 100% The Katharine Gibbs School of Montclair, Inc. New Jersey The Katharine Gibbs Schools, Inc. 100% The Katharine Gibbs School of Norwalk, Inc. Connecticut The Katharine Gibbs Schools, Inc. 100% The Katharine Gibbs School of Piscataway, Inc. New Jersey The Katharine Gibbs Schools, Inc. 100% The Katharine Gibbs School of Providence, Inc. Rhode Island The Katharine Gibbs Schools, Inc. 100% K-III KG Corporation - Massachusetts Massachusetts The Katharine Gibbs Schools, Inc. 100% K-III KG Corporation - Melville New York The Katharine Gibbs Schools, Inc. 100% K-III KG Corporation - New York New York The Katharine Gibbs Schools, Inc. 100% Paramount Publishing, Inc. California Intertec Publishing Corporation 100% Canadian Sailings, Inc. Canada K-III Directory Corporation 25% Direct 100% Beneficial Ownership Musical America Publishing, Inc. Delaware K-III Directory Corporation 100% K-III HPC, Inc. Delaware K-III Prime Corporation 100% Haas Publishing Companies, Inc. Delaware K-III HPC, Inc. 100% Stagebill, Inc. Delaware K-III Magazine Corporation 100% Lifetime Learning Systems, Inc. Delaware Weekly Reader Corporation 100% Channel One Communications Corporation Delaware K-III Prime Corporation 100% Admirefruit Limited United Kindgdom Intertec Publishing Corporation 100% Intertec Market Reports, Inc. Delaware Intertec Publishing Corporation 100% Intertec Presentations, Inc. Colorado Intertec Publishing Corporation 100% MH West, Inc. California Intertec Market Reports, Inc. 100% PJS Publications, Inc. Delaware K-III Magazine Corporation 100% Symbol of Excellence Publishers, Inc. Alabama PJS Publications, Inc. 100% Argus Publishers, Corporation California K-III Magazine Corporation 100% Bacon's Information, Inc. Delaware K-III Prime Corporation 100% Canadian Red Book, Inc. Canada Intertec Publishing Corporation 100% McMullen Argus Publishing, Inc. California K-III Magazine Corporation 100% American Heat Video Productions, Inc. Missouri Westcott Communications, Inc. 100% ASTN, Inc. Delaware Westcott Communications, Inc. 100% A WEP Company California Western Empire Publications, Inc. 100% Bankers Consulting Company Missouri Westcott Communications, Inc. 100% Data Book, Inc. Georgia Haas Publishing Companies, Inc. 100% The Electronics Source Book, Inc. Delaware Intertec Publishing Corporation 100% Excellence in Training Corporation Delaware Westcott Communications, Inc. 100% Gareth Stevens, Inc. Wisconsin K-III Reference Corporation 100% IDTN Leasing Corporation Delaware Westcott Communications, Inc. 100% Industrial Training Systems Corporation New Jersey Westcott Communications, Inc. 100% Law Enforcement Television Network, Inc. Delaware LETN, Inc. 100% Law Enforcement Television Network, Inc. Texas Westcott Communications, Inc. 100% Lockert Jackson & Associates Washington Westcott Communications, Inc. 100% Straight Down, Inc. California Western Empire Publications, Inc. 100% Tel-A-Train, Inc. Delaware Westcott Communications, Inc. 100% TI-IN Acquisition Corporation Texas Westcott Communications, Inc. 100% Tunnell Publications, Inc. Texas Intertec Publishing Corporation 100% Westcott Communications, Inc. Texas K-III Prime Corporation 100% Westcott Communications Michigan, Inc. Michigan Westcott Communications, Inc. 100% Westcott ECI, Inc. Texas Westcott Communications, Inc. 100% Western Empire Publications, Inc. Delaware McMullen Argus Publishing, Inc. 100%