Aristotle's De Anima is an extraordinarily influential text in the history of philosophy; it is also one of the earliest works in what we now call psychology. In this lively and accessible Oxford Guide, which presupposes no knowledge of Greek, José Luis Bermúdez situates the De Anima in the context of ancient Greek philosophy, and places it within Aristotle's corpus as a whole. Each chapter is organized around focus readings from the De Anima and elsewhere in Aristotle's writings (as well as from Plato's Phaedo and Theaetetus).