Professor Hobsbawn, Marxist, historian and participant observer has involved himself intellectually and ideologically in the concept of revolution as a means of social change. Revolutionaries is the result of this involvement: a collection of lectures and critical essays researched and written realistically though not dispassionately. Concentrating on both the theory and practice of revolution he treats familiar themes such as anarchism, Marxism, Leninism and Britain's relation to these ideologies; guerrilla warfare, civil-military relations and the class struggle. In addition he discusses less traditional subjects such as the relations between the structure of cities and urban insurrections; the social implications of controlling violence; and the philosophical works of Ernst Block, Karl Korcsh, Louis Althusser and Hannah Arendt. Revolutionaries is a lucid exploration of important epochs and events. It offers a clarification and an appreciation of the past and of our relationship to it.