The two volumes of Marxism and Historical Practice bring together essays written by one of the major Marxist historians of the last fifty years. The pieces collected in Volume I, Interpretive Essays on Class Formation and Class Struggle, offer a stimulating, empirically grounded survey of North American collective behaviour, popular mobilizations, and social struggles, ranging from a rich discussion of ritualistic protest like the charivari through the rise of the Knights of Labor in the 1880s to campaigns against neoliberal labour reform in British Columbia in the early 1980s. What emerges is Palmer’s sustained reflection on long-standing interpretive historical problems of class formation, the dynamics of social change, and how popular social movements arise and relate to law, the state, and existing cultural contexts.