Larry Trainor
- The Industrial Workers of the World
- From the IWW to the Founding of the Communist Party
- The Foundation of American Trotskyism
- The Communist League of America to Hitler
- The International Situation, 1933–36
- Into the Socialist Party, and Out
- The Second International to 1937
- An Analysis of Stalinism
- The Communist League of America, the Workers Party and the Socialist Workers Party
- The Socialist Workers Party in Wartime
- Socialism in America after the Second World War
- Post-War Socialism in America and Abroad
- The Ageing of American Socialism
- The Catholic Church