Hedley Bull's The Anarchical Society is the defining text for the English school approach to international relations and one of the most enduring and important works of international theory. This book brings together some of the leading writers on the English school who provide an authoritative re-assessment of Bull's key concepts. In addition to analyzing the component elements of Bull's conception of the international society, they also examine how Bull's account of world order fares in the face of the forces of globalization that have started to play such an important role in world politics in the years since Bull wrote his classic text. The book follows the structure employed by Bull and it considers key concepts, major institutions and alternative approaches to order. In doing so, it reasserts the enduring insights of Bull's work, whilst responding to major developments in the theory and practice of international relations.