To what degree can anarchism be an effective organized movement? Is it realistic to think of anarchist ideas ever forming the basis for social life itself? These questions are widely being asked again today in response to the forces of economic globalization. The framework for such discussions was perhaps given its most memorable shape, however, in George Woodcock's classic study of anarchism—now widely recognized as the most significant twentieth-century overview of the subject. Woodcock surveys all of the major figures that shaped anarchist thought, from Godwin and Proudhon to Bakunin, Goldman, and Kropotkin, and looks as well at the long-term prospects for anarchism and anarchist thought. In Woodcock's view 'pure' anarchism—characterized by 'the loose and flexible affinity group which needs no formal organization'—was incompatible with mass movements that require stable organizations, that are forced to make compromises in the face of changing circumstances, and that need to