Most listings in this catalog, which draws on many sources of production and is not a guide to one company's output, are for programs of college or adult level interest, with the exception of the "Careers" listings, geared toward high school students. The catalog also has lists of producers of children's cassettes and those designed for school instruction. Each cassette program, set, or series is listed by title and brief description, order number when available, cost, and source abbreviation. The complete names and addresses of all sources are given under the "Source" heading. The length of each program is given whenever possible, and ordering information is included. Cassettes are listed by the following topics: social studies, languages, literature, business, health sciences, law, education, religion, how to do it, self development, and miscellaneous, which includes sports, love and sexuality, old time radio, science, college level courses, careers, vocational, and general. (JK)