For almost two decades, Yale students have competed for admission each year to the "Studies in Grand Strategy" seminar taught by John Lewis Gaddis, Paul Kennedy, and Charles Hill. Its purpose has been to prepare future leaders for responsibilities they will face, through lessons drawn from history and the classics. Now Gaddis has distilled that teaching into a succinct, sharp and potentially transformational book, surveying statecraft from the ancient Greeks to Franklin D. Roosevelt and beyond. An unforgettable guide to the art of leadership, On Grand Strategy is, in every way, its own master class.