Rudolf Rocker (1873-1958) was a leading figure in the international anarchist movement. Politically active in Britain, Germany and the United States for more than half a century, Rocker helped found several influential anarchist groups. His prolific lectures and writings made him one of the best-known proponents of liberty and freedom. Anarcho-Syndicalism, the most accessible of his works, was first published in 1938 and is now regarded as a classic survey of anarchism at a critical point in world politics.