"This is a study of social protest and repression in one of the twentieth century's most important revolutionary hotspots. It explains why Barcelona became the undisputed capital of the European anarchist movement and explores the sources of anarchist power in the city. It also places Barcelona at the centre of Spain's economic, social, cultural and political life between 1898 and 1937." This is a work of importance in the field of contemporary Spanish history and fills a significant gap in the current literature.