Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great billiard book for all skill levels

A former city of Cincinnati, College and military Amateur Champion, I've spent a good part of my life walking around a pool table. And I've played all the important games from One-Pocket and Bank Pool to Nine Ball and Straight Pool. More recently, and in semi-retirement, I decided try and take my game to a new level. That meant learning a few new tricks. There's no other author on the game of pocket billiards who knows more tricks than Robert Byrne. If you think you have a good handle on the sport, think again. You are guaranteed to advance your game if you follow the tips in Byrne's book. Now I know why he's in the Billiard Congress Hall of Fame. Now I've got to go practice what I've learned...