"Palmer's biography is destined to become a classic in the historiography of US Communism. It is the most serious treatment of the Communist movement's history in the 1920s since Draper's two volumes appeared approximately 50 years ago. . . . Palmer is currently preparing the second volume of his Cannon biography, chronicling the subject's Trotskyist years. I can hardly wait to read it."--Left History"Palmer's faithful, moving account of the choices Cannon faced has important lessons for us. One of those lessons is that, even as we weigh the decisions the choices and hopes of previous radical generations, we need to attend to our own imperatives and dreams."--Canadian Dimension"An important contribution to the study of American radicalism."--Journal of American History