The collection is a partial record of some of the major activities of the Educational Services Inc. (ESI), Physical Sciences Study Committee (PSSC), and Education Development Center (EDC) in the areas of curriculum development, and educational reform; the ESI and PSSC records are grouped together. The ESI portion of the collection consists almost entirely of the records of the development of the PSSC Physics course and the Introductory Physics Science (PS) course, and the implementation of both courses in American and foreign schools. The PSSC material consists primarily of drafts of the PSSC Physics text (1958), laboratory guide and teachers guide; correspondence and commentary concerning the material is included. The EDC records, most of which appear to be from the files of Marc S. Tucker, secretary of the EDC (1969), consist of administrative records, including material on the merger between the IEI and ESI; public relations material; minutes of Board of Trustees meetings, 1968-1979; and administrative correspondence and memoranda. There are small amounts of material from the Committee on Operations, the Publications Committee and the EDC library; also included are correspondence, reports and contracts with the United States Office of Education, primarily concerning EDC's Pilot Communities Program. Records document the writing, revision and implementation of PSSC Physics and Introductory Physical Science.