The Age of Extremes, written by Eric Hobsbawm, provides a comprehensive history of the world from 1914 to 1991. Hobsbawm explores the major political, economic, and social developments that shaped the 20th century. The book covers key events such as World War I, the Great Depression, World War II, the Cold War, and decolonization. It offers a global perspective on the challenges faced by nations and the impact of these events on international relations.