This document outlines Malcolm Knowles' principles of andragogy, or adult learning theory. Andragogy is defined as the art and science of helping adults learn, with two central attributes being that adult learners are self-directed and autonomous, and teachers act as facilitators rather than presenters. Knowles identified six assumptions of how adults learn: they need to understand why they are learning something; they see themselves as self-directed learners; they draw on prior life experiences; they are ready to learn things that help them cope with real-life situations; their orientation is problem-centered rather than subject-centered; and they are motivated by internal rather than external factors.