Arranged into two series: Series I covers materials produced by or relating to specific political parties, labour unions, student groups, coalitions, and other organizations (Boxes 1–2, Folders 1–19). Series II covers materials organized by subject theme, including referenda and elections, labour unrest, Catalan nationalism, pro-amnesty movements, civil rights, the Catholic Church, and miscellaneous items (Box 2, Folders 9–14).

Within each series, materials are arranged alphabetically by organization name or subject heading.