Between the 1960s and 1990s, more than fifty designers worked at OSPAAAL. Based in Cuba, they made magazines and posters that were sent around the world. Their aim was to promote radical political ideas. Many of their posters celebrate socialist revolutions and liberation movements from the Global South.

This poster was issued to show support for anti-apartheid activist Nelson Mandela while he was imprisoned in South Africa. Through his prison window is the flag of the African National Congress; its three colours represent the people, land and resources of South Africa.