Fans around the world are used to seeing the infrared technology of "Hotspot", the acoustics of "Snicko" and the ballistics of "Hawkeye", but how many people actually understand how these aids work and what their applications and limitations are? Is there any scientific reason why a white ball should behave differently to a red one? Why do we use a red or a white ball anyway? Cricket is also an eminently statistical sport. This Book explains those questions and many more.