'Perfect for our time' Adrian Searle, Guardian An extraordinary collection of powerfully inspiring imagery on the nature of challenge and change. Features 240 reproductions of art, photography and objects, selected from cultures through history and across the globe, including works by living artists: Zanele Muholi, Kara Walker, Carrie Mae Weems, Ellen Gallagher, Shirin Neshat, Gillian Wearing and many others.