The Guerrilla Girls street posters use humour and outrageous visuals to highlight the lack of art by women in public galleries. You’re seeing less than half the picture without the vision of women artists and artists of colour. In the middle of the night they paste up awareness posters in cities all over the world. Share their messages on the recycled zip pockets. Dearest Art Collector, 1986 © Guerrilla Girls. Purchased 2003. Tate London.