South Africa United Democratic Front (UDF) is an artist. 2 works are cataloged here, principally at Museum of Modern Art.

This was art as resistance, made by ordinary people who couldn’t show their faces. In 1984, a group of South African activists turned a church hall into a print shop overnight, rolling out posters that said what newspapers wouldn’t: “Defiance Campaign begins Monday.” The ink smelled like hope and danger.

Why this belongs in Gallery Tiles: look up the “UDF 1984 Untitled poster” and you’ll see the moment a movement became visible.