The collection comprises bulletins, convention and forum constitutions, programs, and leaflets, correspondence, reports, flyers, and subject files relating to the Socialist Workers Party (SWP), which was founded in 1928 by James P. Cannon.

The collection contains Internal Discussion Bulletins and Pre-Conference Discussion Bulletins published by Revolutionary Communist Youth (RCY), and Internal Discussion Bulletins and one Young Communist League Bulletin published by the Spartacus Youth League (SYL). Both organizations served as the national youth group for the Spartacist League of the U.S., a Trotskyist political organization, from 1971-1986.

This collection contains bulletins, pamphlets, articles, and one conference transcript that reflect the theoretical sentiments and organizational activities of the Spartacist League of the U.S. The League was officially formed in 1966 by expelled members of the Revolutionary Tendency within the Socialist Workers Party. It is the United States section of the International Communist League (Fourth International).