This report provides information on 25 national educational research and development centers. The description of each center contains the name and address of the grantee, the director(s), affiliated organizations, a detailed abstract of its mission and activities, and a list of key personnel. The following centers are included: (1) National Research Center on Assessment, Evaluation, and Testing; (2) Center on Families, Communities, Schools, and Children's Learning; (3) National Center on Education in the Inner Cities; (4) National Research Center on Cultural Diversity and Second Language Learning; (5) National Center for the Study of Writing and Literacy; (6) National Research Center on Student Learning; (7) National Center for Research on Teacher Learning; (8) National Center on Postsecondary Teaching, Learning, and Assessment; (9) National Center for Research on Educational Accountability and Teacher Evaluation; (10) The Policy Center of the Consortium for Policy Research in Education; (11) National Center on Adult Literacy; (12) National Center on the Educational Quality of the Workforce; (13) Center on Organization and Restructuring of Schools; (14) National Center for Research in Mathematical Sciences Education; (15) National Center for Science Teaching and Learning; (16) The Finance Center of the Consortium for Policy Research in Education; (17) National Research Center on Literature Teaching and Learning; (18) Center for Research on the Context of Secondary School Teaching; (19) Center for the Learning and Teaching of Elementary Subjects; (20) Center for Research on Effective Schooling for Disadvantaged Students; (21) National Center for Educational Leadership; (22) National Center for School Leadership; (23) Center for Technology in Education; (24) Reading Research and Education Center; and (25) The National Research Center on the Gifted and Talented. (DB)