This bibliography provides annotations for recent research studies and lists journal articles on preschool programs. The 180 entries offer information for program organizers and administrators, teachers and parents. Included are entries from the ERIC monthly abstract journal, "Research in Education," covering a period from January 1970 through March 1971, and journal articles reported in "Current Index to Journals in Education" from January 1970 through February 1971. Titles were selected from these categories: Preschool Education, Preschool Programs, Early Childhood Education, Nursery Schools, Experimental Programs, and Demonstration Programs. Information related specifically to day care is not included in this bibliography but has been compiled in a separate bibliography. (AJ)