CSPG is radical primarily because of the grassroots history and development of the organization, as well as its current programming. With its focus on social-justice posters and ephemera, the collection contains records that reference largely under-documented topics, issues, and communities. CSPG has two collecting criteria: 1) Works must be produced in multiples (such as offsets, silkscreens, stencils, woodcuts, etc.). 2) Works must be overtly political. CSPG accepts and welcomes posters representing any political ideology, although the vast majority of the works in the collection are from the Left. It documents diverse human-rights issues and social-justice movements. Approximately 40 percent of the collection is either produced internationally or about international solidarity.