J. Robert Oppenheimer is one of the iconic figures of the twentieth century, a brilliant physicist who led the effort to build the atomic bomb for his country in a time of war, and who later found himself confronting the moral consequences of scientific progress. In this magisterial, acclaimed biography twenty-five years in the making, Kai Bird and Martin Sherwin capture Oppenheimer's life and times, from his early career to his central role in the Cold War. This is biography and history at its finest, riveting and deeply informative.

KAI BIRD is the author of The Chairman: John J. McCloy, The Making of the American Establishment and The Color of Truth: McGeorge Bundy and William Bundy, Brothers in Arms. He coedited with Lawrence Lifschultz Hiroshima's Shadow: Writings on the Denial of History and the Smithsonian Controversy. A contributing editor of The Nation, he lives in Washington, D.C., with his wife and son.
MARTIN J. SHERWIN is the Walter S. Dickson Professor of English and American History at Tufts University and author of A World Destroyed: Hiroshima and Its Legacies, which won the Stuart L. Bernath Prize, as well as the American History Book Prize. He and his wife live in Boston and Washington, D.C.