Fully updated with contemporary case examples, this introductory bestselling textbook offers a wide-ranging and approachable guide to international relations.

Written by three acclaimed scholars bringing together decades of experience, it introduces key concepts and theories in international relations while equipping you with the analytical frameworks and empirical evidence to examine changes in world politics and the international economy.

Supported by a range of popular boxed features such as Levels of Analysis, Differing Theoretical Approaches, Making Connections and Research Insight to help you navigate the complex problems and events in our rapidly changing world.

New to the fourth edition:
- Updated coverage and discussion of recent developments in international affairs including the war in Ukraine, Israel-Hamas wars, the role of AI in international politics, cryptocurrencies and the rise of the Global South
- Analysis of the resurgence of economic nationalism
- Brand new case studies featuring contemporary examples such as the enlargement of BRICs, China's increased dominance in the world economy and the use of AI and drone technology in recent conflicts

A rich companion website with study guides, instructor resources and interactive exercises has been updated for this edition and is available at no extra cost.

Joseph Grieco is Professor of Political Science at Duke University, USA.

G. John Ikenberry is the Albert G. Milbank Professor of Politics and International Affairs at Princeton University, USA.

Michael Mastanduno is Nelson A. Rockefeller Professor of Government at Dartmouth College, USA.