Jonathan Shay is a clinical psychiatrist whose treatment of combat trauma suffered by Vietnam veterans combined with his critical and imaginative interpretations of the ancient accounts of battle described in Homer’s Iliad and Odyssey are deepening our understanding of the effects of warfare on the individual. Jonathan Shay received a B.A. (1963) from Harvard University and an M.D. (1971) and Ph.D. (1972) from the University of Pennsylvania. Since 1987, he has been a staff psychiatrist at the Department of Veteran Affairs Outpatient Clinic in Boston, Massachusetts. In 2001, Shay served as Visiting Scholar-at-Large at the U.S. Naval War College, and from 2004 to 2005, he was Chair of Ethics, Leadership, and Personnel Policy in the Office of the U.S. Army Deputy Chief of Staff for Personnel.