Andragogy, a term introduced by Malcolm Knowles, refers to the art and science of adult learning, emphasizing that adults learn differently than children. Key principles include the need to know why learning is necessary, a self-concept of being responsible for one's own learning, and a reliance on life-centered learning experiences. Andragogy is particularly effective in community and corporate settings that support self-directed learning, although its application in higher education may be more limited.