Based on the new and much acclaimed two-volume Cambridge edition of The Philosophical Writings of Descartes by Cottingham, Stoothoff and Murdoch, this anthology of essential texts contains the most important and widely studied of those writings, including the Discourse and Meditations and substantial extracts from the Regulae, Optics, Principles, Objectives and Replies, Comments on a Broadsheet, and Passions of the Soul. In clear, readable, modern English, with a full text and running references to the standard Franco-Latin edition of Descartes, this book is planned as the definitive one-volume reader for all English-speaking students of Descartes.