This paper reviews the literature pertaining to the economic feasibility, public acceptance, and learning outcomes of year-round schools. Although much of the discussion is applicable to public schools throughout the United States, the author is mainly concerned with determining the suitability of a year-round school plan for the small Illinois school district of Macomb. Information for the study was obtained primarily from books, monographs, periodicals, Educational Resources Information Center (ERIC) microfiche, and materials provided by school districts currently operating year-round schools. A variety of year-round plans are considered, including a three-quarter system plus a voluntary summer program, a three-quarter system plus a summer program for professional personnel, a staggered four-quarter system with each student attending three quarters, a four-quarter system with 48 weeks of school for all students, and an overlapping 45-15 four-quarter system. A fairly extensive bibliography of publications related to year-round schools is also included. (JG)