This comprehensive, user-friendly introductory textbook to political psychology explores the psychological origins of political behavior. The authors introduce readers to a broad range of theories, concepts, and case studies of political activity to illustrate that behavior. The book examines many patterns of political behaviors, including leadership, group behavior, voting, media effects, race, ethnicity, nationalism, social movements, terrorism, war, and genocide. It explores some of the most horrific things people do to each other, as well as how to prevent and resolve conflict – and how to recover from it. The book contains numerous features to enhance understanding, including text boxes highlighting current and historical events to help students see the connection between the world around them and the concepts they are learning. Different research methodologies used in the discipline are employed, such as experimentation and content analysis. The third edition of the book has two new chapters, one on the media, and one on social movements. This accessible and engaging introductory textbook is suitable as a primary text on a range of upper-level courses in political psychology, political behavior, and related fields, including policymaking.