Don DeLillo's reputation rests on a series of large-canvas novels, in which he's proven to be the foremost diagnostician of our national psyche. In The Body Artist, however, he sacrifices breadth for depth, narrowing his focus to a single life, a single death. The protagonist is Lauren Hartke, who we see sharing breakfast with her husband, Rey, in the opening pages. This 18-page sequence is a tour de force (albeit a less showy one than the author's initial salvo in Underworld)--an intricate, fun...