Instruct: Classify a given review as either positive or negative.
Query: waste of money

Book On Bookies: An Inside Look At A Successful Sports Gambling OperationI really resented the time I spend reading this book, I could have caught up on some sleep, watched paint dry - useful stuff. This was without doubt the worst book on gambling and bookmaking I have ever read, I learned nothing, it was very out of date and if anyone laid a bet with this guy they were an idiot with the books he made up. If you are looking for an insight into how to be a bookie or how to beat them stay clear of this.