This is a collection of papers, some previously published and some new, dealing with the topic of individual autonomy. Included are both extensive discussions of autonomy itself and theoretical applications of the concept of autonomy to various areas of philosophical inquiry. The concept of autonomy is central to a wide range of issues in contemporary moral, legal, and political theory. Specifications of individual autonomy are frequently at issue in debates concerning the nature of free action and free will which in turn inform philosophical discussions of such things as political liberty. Autonomous preference formation features in defences of Utilitarianism, as well as in rational choice theories , and in the philosophy of the social sciences. In law, autonomy is often invoked as the foundation of individual rights. This collection, which includes essays by Gerald Dworkin, Joel Feinberg, David A. J. Richards, Susan Wolf, and other noted philosophers, is the first devoted entirely to the concept of autonomy. It is intended to serve as a supplementary text in a variety of undergraduate and graduate courses in moral, political, social, and legal philosophy.