Drug-abuse-prevention materials developed by and available from the National Institute of Mental Health, National Clearinghouse for Drug Abuse Information are described in this guide. The materials are television and radio spots, print ads, posters, a federal source book, flyers, special audience publications, information for the professional, help for teachers, films for schools and adult groups, a play, a game simulation, and a multimedia package. Answers to public inquiries are accomplished by the clearinghouse through publications distribution, information storage and retrieval, and referral to appropriate agencies. A loan request form and an order form are provided. (DB)