The Age of Revolution is the first of four works by Eric Hobsbawm that collectively synthesize the ideas he developed over a lifetime spent studying the nineteenth and twentieth centuries. Hobsbawm's vision is important – he was a lifelong Marxist whose view of history was shaped by a fascination with social and economic history, yet who privileged evidence over political theory – but the real power of these works, and especially The Age of Revolution, emanates from the wide range of the author's reading and his mastery of the critical thinking skill of evaluation. It is this skill that allows Hobsbawm to combine insights drawn from decades of reading into an original thesis that sees the crucial "long 19th century" as a period shaped by "dual revolution" – the twin impacts of the Industrial Revolution in Britain, and the French Revolution on the continent. Hobsbawm supplemented his evaluative excellence with a firm grasp of reasoning, crafting a volume that contains brilliant, clearly-structured arguments which explain complicated ideas via well-chosen examples in ways that make his work accessible to intelligent general readers and scholars alike.