The concepts in this book can help you hit a lot harder. If you do the work, you'll make the person holding the focus mitt gasp when you hit it. You may pop an air shield or break a heavy bag in half. In self-defense (don't pick fights) you could drop your attacker to the pavement like a cold side of beef. It could save your life. Whether you're into self-defense, sparring or winning tournaments, it's good to know how to hit hard and hit fast with...