A comprehensive introduction to the rapidly growing research area of peace psychology. Both a topic in its own right and studied within courses on peace studies, conflict studies and subsidiaries of psychology, international relations and politics, peace psychology is a practically and theoretically important area. This textbook covers the whole research literature focusing on research since the end of the cold war but also incorporating aspects of earlier literature which retain contemporary relevance. The content includes an introductory chapter outlining the growth of the field and continues to cover interdisciplinary practice (international relations, education, feminist studies and ethics), primary psychological topics (development, social psychology, psychodynamics and cognition), core topics from peace studies (conflict resolution, crisis management, non-violence, peacemaking and peacebuilding, specific locations such as the middle East and sustainable development) and terrorism (threats and victims). This is a unique textbook that will appeal to students and practitioners alike.