43: Cuarenta y tres. México: El Taller de la Lorraine, 2015.
80 Years of Political Art in the U.S. War Resisters' League, 1980.
Ayotzinapa: Desaparición Política. Pensaré Cartoneras, 2014.
Migration Now: A Print Portfolio of Handmade Prints Addressing Migrant Issues. Justseeds Artists' Cooperative, 2012.
Emory Douglas was the Minister of Culture for the Black Panthers from 1967 to the 1980s, and a talented artist.
Many of the back-page illustrations of the Black Panther newspaper were by Douglas. These could be detached and used as posters.
Rizzoli published Black Panther: The Revolutionary Art of Emory Douglas in 2007.
Red on Black: The Story of the South African Poster Movement. South African History Archives, 2007.
We have more than 550 posters from South Africa, neighboring countries in Southern Africa, and from anti-apartheid movements all over the world.
The full collection can be browsed here. This will include post-apartheid-era political posters from several countries, and messages related to health, education, rights of laborers, etc.
Narrow your search to anti-apartheid posters by searching posters and apartheid.