The forty-two articles in this handbook are designed to draw the attention of secondary school principals and teachers to radio and television, their role in society, and their current place in secondary school education; to justify the continued existence of radio and television in the secondary school; and to point out new ways in which radio and television can benefit secondary education. The broadcasting industry is viewed from a historical perspective. The impact of radio and television on politics, world understanding, business, an d cultural development is discussed. The role broadcasting plays in the information explosion is examined. Suggested methods for teaching broadcasting in the school are offered. Technical information necessary to operate a 2500 megacycle instructional television service, set up a television or radio facility in the school, and choose and buy television equipment is presented. Some views of the ways in which broadcasting might affect secondary education in the future are projected. Advice and direction of a general nature is given on the study and use of radio and television in the school. A bibliography and periodical list of publications in the broadcasting field is given, as well as a descriptive listing of educational broadcasting associations. (JY)