This handbook on the adult learner and adult learning problems or disabilities is designed to serve as a practical tool for the Adult Basic Education instructor. It is divided into two main sections. Section 1 contains information concerning the nature of the adult learner. The first part deals with general characteristics of the adult learner and is followed by discussions on older adult learners, younger adult learners, and English as a Second Language adult learners. Each of these four parts of section 1 includes an introduction followed by a list of implications for the instructor. Section 2 addresses specific learning problems or disabilities that adult learners may exhibit and proposes various compensatory techniques for the instructor to try. Following definition of learning disabilities and discussion of causes are included visual and auditory behavioral checklists (language arts and math) for student identification along with compensatory tactics. For each general or specific behavior teaching strategies are suggested. Reading comprehension is treated separately. Appendixes include a list of teaching materials and tests and a list of agencies rendering diagnostic and remedial services. Listings of annotated references are found at the end of section 1 and the end of the handbook. (YLB)