If art is our bid to make sense of the senseless, there is hardly more fertile creative ground than that of the twentieth century. From the trench poetry of World War I and Holocaust memoirs by Primo Levi and Elie Wiesel to the post-colonial novels of southern Asia and the anti-apartheid plays of the South African Market Theater, writers have married beauty and horror. This "century of trauma" produced writing at once saturated in political violence...