This handbook is designed to help three groups: the administrator who does not have the services of a media specialist, the media specialist who wishes to expand his knowledge or skills, and the classroom teacher who recognizes the value of the overhead as a teaching tool and is looking for practical assistance. Guidelines are provided in 11 chapters: (1) handmade transparencies; (2) heat transfer transparencies; (3) diazo transparencies; (4) photographic ("wet process") transparencies; (5) planning the visual; (6) color-lift transparencies; (7) mounting transparencies for projection; (8) commercially produced overhead materials; (9) special uses and effects; (10) implementation of the local overhead program; and (11) the projector. A list of suppliers is appended, as well as a list of other Film Library publications which are available from the same address. (MER)