“From Ben Shahn’s anti-H-Bomb design to the Guerrilla Girls’ campaign against gender inequality in art museums, posters have a long history of engaging and informing people through a mixture of artistry, wit, and economy. It would be easy to assume that posters have lost some of their impact in a hyper-connected landscape. But in many ways, the rise of social media has given protest and advocacy posters a bigger audience than ever before.”