Kant divided his course of lectures on metaphysics into six parts: a section entitled 'prolegomena' followed by chapters on ontology, cosmology, empirical psychology, rational psychology, and natural theology. This volume's ten chapters, written by leading Kant scholars, constitute the most comprehensive and informed analysis of his metaphysics lectures to date. The book provides balanced coverage of the lecture transcripts from Kant's course by following his general structure, with at least one chapter devoted to major themes from each of its parts. As well as examining what the lecture transcripts can tell us about the content, context, and development of Kant's thought on a range of key topics - from his conception of transcendental philosophy to his critical theism - the contributors to this volume also offer expert discussion and insight on how to make responsible use of these key primary materials from the Kantian corpus.