The document discusses the origins and key concepts of andragogy, the study of adult learning. It notes that the term was first coined in 1833 and introduced to English speakers in 1926. It was pioneered as a theory of adult learning in the 1950s-1960s by Malcolm Knowles, who defined andragogy as "the art and science of helping adults learn." Knowles is recognized as popularizing the use of the term andragogy to refer to adult education. Key aspects of andragogy include that it views learning as a self-directed, problem-based, and collaborative process between teacher and learner.