A clear, coherent, and comprehensive introduction to the major theories and approaches in the discipline of international relations, including realism, liberalism, social constructivism, international society (English School), international political economy, and foreign policy analysis. Excellent learning features to support student learning, including chapter summaries, key points, questions, further reading, web links, boxes and glosssary of key terms. Two colour design to aid navigation. New to this edition Expanded coverage in Chapter 6, Social Constructivism. Chapter 10, Key Issues in Contemporary IR, is linked more closely with the theoretical chapters. Revised and expanded online resource centre; weblinks include reference to theoretical debates as well as information on world situations in specific geographical locations giving students a perspective on how thoery can speak to the real world. The fourth edition of this successful textbook has been updated in light of current international events and ongoing debates in the subject. It is a highly readable book that provides a systematic introduction to the principal theories in international relations combining incisive and original anaylsis with a clear and accessible writing style. Introduction to International Relations is the ideal textbook for all students taking an introductory course in international realtions or international relations theory. The book focuses on the main theoretical traditions - realism, liberalism, international society, and theories of international political economy. The fourth edtion includes expanded coverage of social constructivism and the chapter on key issues in contemporary IR is closely linked with the theoretical chapters. Emphasis is placed on the relationship between IR theory and IR practice. The authors carefully explain how particular theories organize and shape our view of the world ensuring that students, receive a blended view of theory and practice.