Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Learned so much

I am an international judo coach and even though this book discusss endurance sports it also gives fantastic information that other sports can benifit from. It give great detail about where a coach or athletes can use lactate to prevent over training, energy, to much intensity. Hart rate training programmes every sport can use. It is a book you can use time and time again and much more.I highly recommend this book to every coach & athlete. It's not a hard read and will prompt you to read other books to increase your knowledge which will benifit everyone.