Abstract: An overview of the slide as a medium, its unique characteristics, procedures for its use, and slide production guidelines is presented for classroom instructors, message designers, and communication specialists. Major attention is given to slide utilization procedures, and to photographic techniques and slide production (both photographic and nonphotographic). Advice on the care and storage of slides is included, as is information on narration to accompany a slide presentation. A glossary of terms and sources for slides and slide display equipment are appended. (wz).