Over 25,000 filmstrips are described in this revision of the "Index to 35mm Filmstrips." The volume is divided into: a subject guide, an alphabetical guide, and a directory of producers and distributors. Information provided in the alphabetical guide includes the complete title of the filmstrip with the physical description immediately following, edition or version, length, stock or color code, audience level, content description, series title reference, producer code, distributor code, production credit code, and the year the filmstrip was released in the United States. A subject heading outline and an index to subject headings are provided as an aid to the use of the subject guide. (JY)