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 Bobby Sands (8 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 (18 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)
- Library works by Friedrich Engels (19 members)
- Library works by Gabriel Rockhill (3 members)
- Library works by George Jackson (1 member)
- Library works by Georges Politzer (2 members)
- Library works by Georgi Dimitrov (1 member)
- Library works by Georgi Plekhanov (2 members)
- Library works by Grover Furr (3 members)
- Library works by Gus Hall (1 member)
- Library works by Harry Haywood (2 members)
- Library works by Ho Chi Minh (4 members)
- Library works by Ilan Pappe (2 members)
- Library works by James Connolly (2 members)
- Library works by Jones Manoel (1 member)
- Library works by Joseph Stalin (18 members)
- Library works by Karl Marx (26 members)
- Library works by Kim Il-Sung (0 members)
- Library works by Kim Il-sung (1 member)
- Library works by Kim Il Sung (6 members)
- Library works by Kim Jong-Il (1 member)
- Library works by Kim Jong-Un (0 members)
- Library works by Kim Jong-un (2 members)
- Library works by Kim Jong Il (5 members)
- Library works by Kim Jong Un (2 members)
- Library works by Kwame Nkrumah (3 members)
- Library works by Lenin (1 member)
- Library works by Leslie Feinberg (3 members)
- Library works by Liu Shaoqi (2 members)
- Library works by Louis Althusser (1 member)
- Library works by Ludo Martens (1 member)