This book presents a scientific but easy to understand explanation of pitching power. Illustrated with anecdotes about baseball's greatest power pitchers, it describes how they were able to achieve phenomenal fastball velocity and record-breaking strikeout numbers. How was a 17-year-old rookie named Bob Feller able to strike out Major League batters in record numbers? How do the tendons, ligaments, and muscles of the arm and shoulder work to amplify power for greater pitch velocity? How was minor league pitcher Steve Dalkowski able to throw the most phenomenal fastball ever seen (or heard)? Why do young pitchers with exceptional velocity often issue walks at exceptional rates? Why do good pitchers occasionally pitch badly? Why is exceptional hand speed important? What is it about overhand throwing that causes elbow and shoulder injuries? How can a pitcher achieve greater endurance and durability? What is the most reliable way to increase fastball velocity? This book addresses these and other questions for pitchers, coaches, managers, trainers, and fans.