This chapter discusses a literature review on developing learner autonomy through strategy training. It defines learner autonomy as taking charge of one's own learning and acting independently in learning situations. The chapter outlines two levels of learner autonomy: proactive autonomy where learners plan, monitor, and assess their learning, and reactive autonomy where learners can manage resources autonomously when given direction. It also describes The Autonomous Learner Model and characteristics of autonomous learners. The chapter then discusses implementing learner autonomy through learning contracts, self-access centers, and learner training. It defines strategy training and categories of learning strategies, and examines theoretical approaches to learning like behaviorism, cognitivism, and humanism that influence second language acquisition.