In 1937, under the shadow of rising authoritarianism, and at the behest of Emma Goldman, Rudolf Rocker penned Anarcho-Syndicalism to champion the ideals of equality, voluntary cooperation, and mutual aid, which were fuelling the Spanish Revolution and igniting resistance to capitalism the world over. In this political masterpiece, Rocker offers a clear introduction to anarchist ideas; a history of the international workers' movement; and an outline of the syndicalist tactics of direct action, sabotage, and the general strike. This essential text rejects both capitalist exploitation and authoritarian state socialism, charting the way for a radical alternative of freedom through solidarity.