The Anarchical Society by Hedley Bull is a classic work in the field of international relations. Bull examines the concept of anarchy in world politics and explores how order is maintained in the absence of a central authority. He analyzes different approaches to international order, including balance of power, international law, and diplomacy. Bull's book offers a comprehensive and nuanced understanding of the complexities of international relations and provides valuable insights into the challenges of creating and maintaining a stable global order.