In this highly influential book, Ruth Levitas provides us with an excellent introduction to the meaning and importance of the concept of utopia, and explores a wealth of material drawn from literature and social theory to illustrate its rich history and analytical versatility. Situating utopia within the dynamics of the modern imagination, she examines the ways in which it has been used by some of the leading thinkers of modernity: Marx, Engels, Karl Mannheim, Robert Owen, Georges Sorel, Ernst Block, William Morris, and Herbert Marcuse. Utopia remains the most potent secular concept for imagining and producing a 'better world', and this classic text will be invaluable to students across a wide range of disciplines.