The Tamiment Library and Robert F. Wagner Labor Archives Printed Ephemera Collection on the Communist Party of the United States of America (1918-2004) consists of constitutions, convention proceedings, reports, memoranda and press releases as well as printed ephemera such as fliers, brochures, circular letters, newspapers clippings, pamphlets and publications.

Series I: CPUSA General Files, 1920-1987, contains a wide selection of printed material put out by the CPUSA at the national level. When noted, material has been separated by committee, commission or department, with a large portion coming from the Central Committee, the National Campaign Committee, and the National Education Department, though there are also files on the National Farm, Negro, Teachers, Veterans, and Women's Commissions.

Series II: CPUSA State and Local Files, 1929-1987, contains material generated by various state and local parties. Series II is broken down into two Sub-series, Sub-series A being material from New York State, District and City, and Sub-series B being material from all other states and locals. When noted, the material in Sub-series A is divided by department or committee, with a large portion coming from the National Education Department, in the form of club discussion guides, course curricula and publications relating to National Negro Week celebrated by the CPUSA in the early 1950s. This section also contains fliers, brochures, and pamphlets from the Election Campaign Committee outlining different electoral platforms and programs supported by the New York State Communist Party. There are also a number of pamphlets published by the New York State Communist Party included in this Sub-series as well.

Series III: Affiliated And Youth Organizations, 1918-1987, contains material put out by groups affiliated with the Communist Party of the United States of America. These include predecessor, break away, affiliated and youth groups. A large portion of Series III comes from the youth wings of the CPUSA, the Young Communist League (YCL) and the Young Workers Liberation League. The Young Communist League material is separated by local, with material largely coming from various New York City colleges including Brooklyn College and City College. There is also YCL material from Massachusetts, Illinois, and the National Education Department included here.

Series IV: Presses and Publishing Houses, 1920-1998, contains pamphlets put out by the presses and publishing houses affiliated with the Communist Party of the United States; these include: International Publishers, New Century Publishers, and the Workers Library Publishers. The pamphlets from the three publishing houses are separated by either author or subject. Prominent authors represented in the collection are Earl Browder, William Z. Foster, Elizabeth Gurley Flynn, Herbert Aptheker, and Gus Hall. Also included in this series are catalogs, publicity materials, fliers and brochures from CPUSA newspapers, the Daily World, the People's Weekly World, and the People's World.

Series V: Oversize, 1932-1949, contains materials that are large and required separate housing. This consists of brochures, clippings, constitutions, fliers, and pamphlets. A majority of the materials are from New York State and New York City, but also originate with the Daily Worker, the Waterfront Section, and the Youth Communist League.