John Lewis Gaddis, the distinguished historian of the Cold War, has for almost two decades co-taught grand strategy at Yale University with his colleagues Charles Hill and Paul Kennedy. Now, in On Grand Strategy, Gaddis reflects with insight and wit on what he has learned. In chapters extending from the ancient world to the Second World War, Gaddis assesses grand strategies theory and practice in Herodotus, Thucydides, Sun Tzu, Octavian/Augustus, Saint Augustine, Machiavelli, Elizabeth I, Philip II, the American Founding Fathers, Clausewitz, Tolstoy, Lincoln, Wilson, Franklin D. Roosevelt, and Isaiah Berlin. For anyone involved or interested in the art of leadership, On Grand Strategy, in every way, a master class. It beckons and pleases exactly as successful lectures must, drawing the reader into complicated material with the aid of anecdotes, examples, and rapidly moving narrative.