• Established market leader with an impressive line-up of international contributors who are experts in their fields. • Maps on to introductory courses, spanning history, theory, structures and processes, and international issues. • Carefully edited by John Baylis, Steve Smith and Patricia Owens to ensure an integrated and coherent style throughout the book. • Highly accessible and student-friendly text with excellent learning features throughout, including numerous boxes, figures, tables and maps, case studies and questions. • Comprehensive Online Resource Centre including test bank, PowerPoint slides, case studies, multiple choice questions, video clips, i-casts of contributors and a news feed. • Visually appealing 4-colour text. New to this edition • 3 new chapters on the changing nature of war, human security, and international ethics. • Each chapter includes a 400-word case study. • More examples from the developing world. Now in its fourth edition, this internationally successful title has been fully revised and updated in light of recent developments in world politics, with new chapters on the changing nature of war, human security, and international ethics. A comprehensive introduction to international relations, it is ideally suited to students coming to the subject for the first time.