Sir Terry Pratchett, who has sold more than 85 million copies of his books worldwide, is read and respected by people with a wide range of interests. This book, the first to explicitly address philosophical themes in his work, will appeal to fans of Pratchett, to philosophers interested in popular culture, and to anyone interested in the relation between fiction and philosophy. Covering topics in metaphysics, logic, epistemology, ethics, and social and political philosophy, the thirteen contributors to this volume illuminate the philosophical significance of Pratchett's work in a sophisticated way, but written so that anyone who reads Pratchett will find something thought-provoking.