In 1937, at the behest of Emma Goldman, Rudolf Rocker (1873-1958) penned this political and philosophical masterpiece as an introduction to the ideals fueling the Spanish social revolution and resistance to capitalism the world over. Within, he offers an introduction to anarchist ideas, a history of the international workers movement and an outline of the strategies and tactics embraced at the time. A prolific writer and speaker, Rocker was one of the most beloved and dedicated anarchists of his time. His other works include Nationalism and Culture, The Tragedy of Spain, Anarchism and Anarcho-Syndicalism and The London Years.