By studying the ways in which American industrial workers mobilized concerted action in their own interest, the author focuses on the workplace itself, examining the codes of conduct developed by different types of workers and the connections between their activity at work and their national origins and neighborhood life. David Montgomery, Farnam Professor of History at Yale University since 1979, is the author of Worker's Control in America (CUP, 1979) and is co-editor of the journal International Labor and Working Class History.