Eric Hobsbawm (1917–2012) was one of the foremost European intellectuals of the twentieth century. He published hundreds of articles on modern history and culture, and his books became canonical works and bestsellers on both sides of the Atlantic. His crystal-clear writing, vast erudition, and ability to make his Marxist analysis digestible to a wide audience brought him worldwide renown. Yet Hobsbawm was no academic hermit. Through his globetrotting journalism, he was embedded in an extraordinary web of politicians, activists, and fellow intellectuals across Europe, South Asia, and the Americas, including Manmohan Singh, Che Guevara, Luiz Inácio Lula da Silva, Fernand Braudel, E. P. Thompson, Arno Mayer, and Salvador Allende. Emile Chabal traces the origins of Hobsbawm’s ideas and most famous writings by exploring his scholarly foundations, delving deep into the archives to uncover hidden links and unexpected conversations that shaped his pathbreaking work. Going well beyond the Ages series of modern history books for which Hobsbawm is best known, Chabal offers the first substantial interpretation of Hobsbawm’s entire body of writing. Indeed, ‘The Age of Hobsbawm’ is also a trove of unique insights into the generations of Marxist writers with whom Hobsbawm was in conversation—authors whose work continues to shape political debates globally.