Abstract: | Summary Andragogy is the art and science of helping adults learn. This article explores the foundations of adult learning theory, as well as current thought and practice. With special emphasis on Malcolm Knowles' Basic Assumptions of Andragogy, the article presents the learning needs and characteristics of the adult library user. These characteristics include: a psychological need to be self-directed; a preference for experiential learning; a desire and readiness to learn practical life applications; and a desire to grow and self-actualize. A discussion follows of the implications for providing more effective reference service and library instruction to adults. |