Sun Tzu's 2,500-year-old masterpiece, The Art of War, is one of the oldest and most-read military treatises in the world. This succinct text, which details all elements of combat and proves the necessity of strategy in a campaign, has informed tacticians and generals for thousands of years. Off the battlefield, people continue to turn to The Art of War for instruction on how to thrive in competitive fields like business, law, and sports.