German artist Thomas Demand occupies a singular position in the world of photography. Initially he took up photography to record his ephemeral paper constructions, but in 1993 he turned the tables by making constructions in order to photograph them. Demand begins by translating a preexisting image, usually culled from the media, into a life-size model he makes out of colored paper and cardboard. He recreates a room, a parking lot, a staircase, a landscape--then...