A review of literature on class size is the purpose of this report. Included are a summary of four meta analyses (Robinson and Wittebols 1986), (Cone 1978), and (Glass and Smith 1978 and 1979); a discussion of research methodologies; recommendations for policy makers; and alternative strategies for class size reduction. Appendices present information on the relationship between achievement and class size, cluster analysis summaries, Utah demographics, and a set of bibliographies that contain more than 350 entries. (LMI)