Sally Bedell Smith is the author of "Grace and Power: The Private World of the Kennedy White House, Diana in Search of Herself: Portrait of a Troubled Princess, Reflected Glory: The Life of Pamela Churchill Harriman," and "In All His Glory: The Life and Times of William S. Paley and the Birth of Modern Broadcasting," A contributing editor at "Vanity Fair" since 1996, she previously worked at "Time" and "The New York Times," where she was a cultural news reporter. She lives in Washington, D.C., with her husband, Stephen. They have three grown children.