Featuring 16 new entries, International Relations: The Key Concepts, now in its fourth edition, is the essential guide for anyone interested in international affairs. Comprehensive and up to date, it introduces the most important themes in international relations. New entries include the following:

• Anthropocene
• Authoritarian populism
• Borders
• Brexit
• Dignity
• Hierarchy
• Intersectionality
• Pandemic
• Postmodern warfare
• Race war
• Resilience

Featuring suggestions for further reading as well as a unique guide to websites on international relations, this accessible guide is an invaluable aid to an understanding of this expanding field, ideal for student and non-specialist alike. It will serve as a vital reference text for undergraduate IR courses.

'This is a freshly updated edition of an already popular book, adding recent ideas like resilience and the Anthropocene to the established IR vocabulary. It manages to be clear and concise while covering each topic in sufficient detail as to offer an excellent guide to the discipline.'

Professor Jonathan Joseph, School of Sociology, Politics and International Studies, University of Bristol, UK.

Steven C. Roach is Professor of International Affairs in the School of Interdisciplinary Global Studies at the University of South Florida. Among his books are South Sudan’s Fateful Struggle (2023), Moral Responsibility in Twenty-First-Century Warfare (2020), Handbook of Critical International Relations (2020), and Decency and Difference (2019).

Alexander D. Barder is Associate Professor of International Relations and Graduate Director at the Steven J. Green School of International and Public Affairs at Florida International University. His most recent book is Global Race War: International Political and Racial Hierarchy (2021).