The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Library works by Alexandra Kollontai (9 members)
- Library works by Alicia Jrapko (1 member)
- Library works by Anna Louise Strong (1 member)
- Library works by Antonio Gramsci (3 members)
- Library works by Carlos Marighella (2 members)
- Library works by Che Guevara (2 members)
- Library works by Cheng Enfu (2 members)
- Library works by Chris Harman (1 member)
- Library works by Clara Zetkin (2 members)
- Library works by David Graeb (1 member)
- Library works by Deng Xiaoping (16 members)
- Library works by Department for Strategic Services (Provisionsal) (1 member)
- Library works by Domenico Losurdo (6 members)
- Library works by Edward Said (1 member)
- Library works by Elizabeth Gurley Flynn (1 member)
- Library works by Enver Hoxha (7 members)
- Library works by Eugene V. Debs (7 members)
- Library works by Evo Morales Ayma (1 member)
- Library works by Fidel Castro (7 members)
- Library works by Frantz Fanon (3 members)