Walter Isaacson is an American writer and biographer. He is now Professor of History at the University of Tulane after being the CEO of the Aspen Institute, a nonpartisan educational and policy studies organization based in Washington, D.C. He has been the chairman and CEO of CNN and the Managing Editor of Time magazine. He has written biographies of Steve Jobs, Benjamin Franklin, Albert Einstein and Henry Kissinger.
An extract from Walter Isaacson's new book explains how being born the bastard son of a notary allowed Leonardo da Vinci to escape the family trade and become a 'disciple of experience'.
