This handbook offers a teach-yourself guide for teachers, administrators, and researchers on the management of educational media and materials. Management of instructional media is often complicated by overlapping functions and responsibilities of various government levels and administrative positions. The guide contains one learning module, which presents information on the use of educational resources and materials, and a flexible learning unit for individualized study. The module is comprised of three sections: (1) approaches to categorizing and managing educational media and materials; (2) needs and costs; and (3) implications of the use of educational media and materials. After completing the module, the reader should understand concepts of educational technology and be able to conduct a cost-effectiveness study of a country's educational technology needs. The handbook begins with a detailed analysis of two UNESCO references: (1) "The Educational Administrator and Instructional Materials" (Jean Valerien, 1984), and (2) "The Economics of New Educational Media," Volume 2, "Cost and Effectiveness" (1980). Four tables and two figures are included. (LMI)