New York: Penguin, (2004) dj. Hardcover first edition - An important book by this noted psychologist, one which "examines the origin, needs, and rewards of war, filling the void of why no one understands why war is constant in history by asking such questions as why humans need enemies." The four chapter titles summarize the themes of this book: War is normal, war is sublime, war is inhuman, relition is war. Notes, bibliography, index. 256 pp. ISBN: 1-594200114.