Since 1985 a group of anonymous women wearing gorilla masks and brandishing glue brushes have taken zap actions at the art world's "stale, male" establishment. Their clever posters (Advantages of being a woman artist: working without the pressure of success; knowing your career might pick up when you're eighty...) have bedecked city walls, converted elitist curators, become collector's items, and even found their way into museum collections. Their work - and this book - offers proof that humour is a great blunt-edged weapon against evil.