This book explores the multifaceted dimensions that make up the American communist movement from its early years in the 1920s to its peak in the years leading up to World War II. The author argues that in order to effectively understand a social movement, it is necessary to take an approach that differentiates between the political-, social-, and labor-oriented motivations taken by the movement's participants. By exploring the political, community, and labor dimensions of American communism, the author helps convey the complex nature of social movements and the various ways they attempted to create agency in their society.