The fourth edition of this well-established and popular introductory textbook has been updated to cover recent developments in the field of International Relations and world events, whilst still navigating the complexities of the discipline for new students. Brown and Ainley provide systematic coverage of the classical concerns of International Relations theory - power, national interest, foreign policy and war - alongside analysis of the impact of globalization on security, governance and the world economy.

Clear and accessible, but also critical and penetrating, this book is an essential text for undergraduate International Relations students today.