Written by Eric Hobsbawm, this book provides a comprehensive history of the 20th century. Hobsbawm explores the major political, economic, and social developments that shaped the world during this period, including the two World Wars, the Cold War, and decolonization. He analyzes the rise of ideologies such as communism and fascism, and their impact on global politics. This book offers a detailed and insightful account of the turbulent 20th century and its implications for international relations.