In providing a detailed account of the leftist opposition and its bloody repression in Brazil during the Old Republic and the early years of the Vargas regime, John W. F. Dulles gives considerable attention to the labor movement, generally neglected by historians. This study focuses on the formation and activities of anarchists and Communists, the two most important radical groups working within Brazilian labor. Relying on a wide variety of sources, including interviews and personal papers, Dulles supplies information that for the most part is unavailable in English and not easily...