Phase I of this National Book Committee study surveyed existing educational media selection facilities and examined programs at the state, regional, and local levels. Facilities were located and identified, and their successful components were evaluated by means of questionnaires and on-site visits. This final report contains an introductory section which summarizes the initial study and describes the needs which prompted it, the role of the National Book Committee, the purpose of Phase I, and the educational media selection centers program itself. The major findings are presented in more than 80 comprehensive tables, together with conclusions and recommendations for subsequent phases of the program. The conclusions cite the need for better communication programs, for more adequate financial bases, and for less duplication of effort among the centers, especially in the area of evaluating and selecting media. Some of the areas indicated for further study include budget, content and balance of media collections, handling of purchased and free media in centers, display and/or cataloging of material, and evaluation of audiovisual and print media. Samples of the forms used to gather data in the study are appended. (Author/JY)