Abstract: This textbook is an introduction to instructional technology. Each chapter includes an outline, objectives, vocabulary, case studies, examples of materials, "how to" procedures, and appraisal checklists where appropriate. The first three chapters address using media for instruction, planning for the use of media, and visual design. Following this the authors provide detailed chapters on several types of media including: nonprojected visuals, projected visuals, audio media, multimedia systems, film and video, and electronic distribution systems. Next the authors describe the operation of various audiovisual equipment. Following this is a chapter on the technologies of instruction which addresses programmed instruction, audio-tutorial systems, cognitive psychology and cooperative learning. The next two chapters explore simulation and games, and computer-based instruction in detail. Last, the authors look at future trends in educational media.