Despite the materials of cut paper on gallery walls, Walker’s spiritual and emotional world is neither black nor white. Instead, panoplies of gray flood the scene. Mixing it up ...

Walker, a recipient of a MacArthur "genius grant," burst into art world prominence in 1994 with a New York show focusing on her large-scale, black-on-white silhouette cutouts of black mammies ...

Walker Evans’ black-and-white photographs captured the tough realities of US life in the 1930s. They still have resonance today, writes Alastair Sooke.