This book is aimed at graduates and advanced undergraduates taking a one-semester course in industrial organization. Throughout, Kaushik Basu's aim is to allow students to use theoretical economics to analyze institutional and policy questions. The approach is game-theoretic and the book falls into two parts: the first based around normal or strategic form games and the second focusing on extensive-form games. Within this framework topics covered include: market structure; oligopoly; nonlinear pricing; quality; durability; location; collusion; entry-deterrence; managerial incentives; switching costs; government intervention.