About the Author

Walter Isaacson, University Professor of History at Tulane, has been CEO of the Aspen Institute, chairman of CNN, and editor of Time magazine. He is the author of Leonardo da Vinci; The Innovators; Steve Jobs; Einstein: His Life and Universe; Benjamin Franklin: An American Life; and Kissinger: A Biography, and the coauthor of The Wise Men: Six Friends and the World They Made. Facebook: Walter Isaacson, Twitter: @WalterIsaacson