David Herbert Donald is the author of "Lincoln, " which won the prestigious Lincoln Prize and was on the "New York Times" bestseller list for fourteen weeks, and of "Lincoln at Home." He has twice won the Pulitzer Prize, for "Charles Sumner and the Coming of the Civil War, " and for "Look Homeward: A Life of Thomas Wolfe." He is the Charles Warren Professor of American History and of American Civilization Emeritus at Harvard University and resides in Lincoln, Massachusetts.