"The Anarchical Society" is a book by Hedley Bull, published in 1977. It explores the concept of international relations and argues that despite the absence of a central authority, a society of states exists. This society is characterized by shared norms and rules that govern interactions among states, promoting order and stability. Bull discusses the balance between order and anarchy, emphasizing that states cooperate through diplomacy, treaties, and international law. He highlights the importance of understanding the dynamics of power and the role of institutions in maintaining peace, even in a system where no overarching authority exists.