The monograph is intended to help administrators clarify issues regarding mainstreaming in preschool education. Four chapters are presented as outgrowths of a workshop on preschool mainstreaming. The first, "Fundamental Issues in Preschool Mainstreaming," by M. Guralnick, focuses on four issues: (1) understanding the purposes of mainstreaming; (2) evaluating its feasibility for a preschool program; (3) determining an appropriate mainstream setting for a child; and (4) finding and creating opportunities to mainstream preschoolers. "Personal Training for Mainstreaming Young Handicapped Children," by N. Peterson, lists specific training needs as viewed from perspectives of preschool teachers, administrators responsible for training, and parents. In "Child Characteristics and Outcomes Related to Mainstreaming," P. Strain and L. Cordisco address issues of instructional decisions and curriculum adaptations. The final chapter, "Parents and Preschool Mainstreaming," by D. Cansler and P. Winton, includes discussions of the impact of mainstreaming on parents as well as the impact of parents on mainstreaming. (CL)