This compilation of readings in educational media and research makes accessible published and unpublished documents relevant to designers and users of educational media. Volume II includes part 3, "Research on Media Types," part 4, "Media Design and Production," and part 5, "Media Content and Objectives.""Research on Media Types" includes summaries of research and selected studies on instructional television, compressed speech, textbook design, pictorial illustration for use in underdeveloped countries, and graphic presentation. "Media Design and Production" translates theory and research into an instructional product, considering visuals, scientific knowledge of psychology, theories of information transmission to media design, and significant film production variables. "Media Content and Objectives" suggests a framework for studying the variables contributing to media effects and offers guidelines for selecting and developing particular types of media to accomplish specific instructional objectives, summarizing the research pertaining to the accomplishment of different educational objectives. The relationship of media to the learning of concepts is also treated. Extensive bibliographies follow these papers. (MM)