This book is one of four in the series that give the reader facts about the technology that is currently being used in sports. The technology has changed the way players train, how the games are precisely watched and evaluated, and the attention given to the health of the players.I felt the book was quite interesting to read. I learned some behind the scenes methods that technology is preparing the players to train more efficiently. The coaches and trainers seem to have a better understanding of the game and the men/women who are instrumental in playing the game.There are instruments that check the heart rate of players. The cameras during the game enable the referees/officials to view a playback in the event of a difficult decision. There are even basketballs with a special circuit inside that send messages to a computer about the way a basketball player is handling the ball. Of course much much more information in this factual book.If you enjoy sports I think you will enjoy not only reading the facts about the technology but viewing the photographs that accompany the text.*I received this for review - all opinions are my own*