This guide to mainstreaming preschoolers with learning disabilities is one of a series of eight manuals on mainstreaming preschoolers developed by Project Head Start. The guide is addressed to parents, teachers and other professionals and paraprofessionals. Chapter I presents information on the meaning, benefits and implementation of mainstreaming. The role of the teacher in mainstreaming is discussed, and sources of assistance with a handicapped child are listed. Chapter II looks at definitions of learning disabilities and describes the behavioral characteristics of various learning disabilities. An observation checklist and general guidelines for recognizing problems for referral are included. Chapter III briefly describes development in learning disabled and non-handicapped children and discusses some of the observable behaviors exhibited by learning disabled children in six skill areas: motor, visual, auditory, communicative, cognitive, and social skills. Chapter IV focuses on planning, arranging classsrooms and teaching mainstreamed learning disabled children. Chapter V describes how parents and teachers can work together while Chapters VI and VII provide information on professional sources of help. Notes on screening and diagnosis are appended. (CM)