"The martial art of jujitsu was developed in Japan hundreds of years ago. It was meant to help practitioners combat samurai--heavily armored, heavily armed warriors--without the use of weapons. Jujitsu emphasizes joint locks, throws, sweeps, and pins, all techniques that can help a smaller competitor use leverage and momentum to take down a bigger opponent. In this book, young readers will learn more about this popular martial art and how they can use its skills in real-life situations. Full-color photographs show the moves and principles of jujitsu in practice"--Provided by publisher.