This monograph is one of 12 that address various topics in the area of CETA/education linkages. They were designed to provide those individuals interested in the development and implementation of CETA/education linkages with information that will serve to enhance the quality of existing programs and facilitate the efficient and effective development of new programs. This monograph describes the concept of adult basic education (ABE), and is divided into four sections: (1) a definition of ABE, (2) needs and characteristics of adult learners; (3) methods of instruction, and (4) program design. While the focus is on ABE, the role and responsibility of CETA programs in incorporating it where necessary is also discussed. (CT)