During the second half of the twentieth century, art became a political weapon of protest and claim. the most important racial and feminist movement of the time were reflected in posters, magazines and mythical photographs, and thus, great graphic designers appeared.

Black Panther Party (American):

Black Panther Party established an organization for the Black Power. They became famous in the 60'S-70'S. It is considered one of the most significant movements in the U.S. history. "The movement had provocative rhetoric, militant posture, and cultural and political flourishes, permanently altered the contours of American Identity", from Life of a Party.

Barbara Kruger (American):

She studied at Parsons School of Design in New York City, and a few years later she started working for Mademoiselle Magazine.
Her work consists of black and white photographs with, usually, declarative phrases.

Guerrilla Girls (American):

The Guerrilla Girls are a group of radical feminist artists established in New York City in the 80's, and known for promoting women and colored people in the arts.

Ben Vautier (French, born in Naples):

He became interested in Yves Klein's work and the Nouveau Réalisme in the 50's, and in Marcel Duchamp's work and French Dada in the 60's. Also, he's active in Mail-Art, and is mostly known for his text-based paintings.
He has defended the rights of minorities in all countries, and has been influenced by François Fontan's theories about ethnism.

-Photographs: Google Images.
All words and photographs in are © Pedro Herrero (unless other is stated).