For almost two decades, Vik Muniz has been making photographs that question and challenge the nature and history of visual representation. His images are at once familiar but alien. They are generally of famous news image, works from art history or likenesses of well-known people, but after an initial moment of recognition, it quickly becomes clear that his images are not what they first seem. They have been changed, usually by having been rendered in any one of an astonishing variety of materials, including dirt, sugar, wire, string, chocolate syrup, peanut butter, ketchup, color chips, hole punch confetti, diamonds, caviar, pigment and junk.