Actually i'm fourteen but I bought this book entering my freshman year of high school to get acquainted with the game. It really does a thorough job of introducing one to the tennis world, covering everything from gear, tennis racquets, grips, strings, and the different types of strokes (forehand, backhand, volley, lob, serve, spins), and what the strokes ARE, but does not focus on how they should be implemented during matches. Advanced tennis players will probably already know most of the info in the book, but absolutely superb for beginners. It really helped me get started with tennis and reduced a LOT of beginner's confusion (eg. what stroke is that again... which is my forehand/which is my backhand, and what they should look like, how do i score, what in the world is a volley?? really detailed information on gear, how to score, what the grand slams are, short bios on historical players, and a lot more) really, really helpful and a must read for all beginners, a good reference book for intermediate players. After attending 6 weeks of tennis camp and hard work outside of tennis camp, I got into my school's JV team, muchly thanks to this book but also thanks to the fact that we didn't have cuts this year because too many people dropped out of tryouts.