Formed in 1985, the Guerrilla Girls are an anonymous activist group who highlight discrimination in the art world. Their targets include museums, dealers, curators and art critics. They fly-posted their first posters overnight in the fashionable New York art district of SoHo, and have also displayed their work as advertisements on city buses. Over the years their attacks on sexism have widened to other areas of social, racial and gender-based inequality. The Guerrilla Girls wear gorilla masks for public appearances and use the names of famous deceased artists and writers as pseudonyms.