Instruct: Classify a given Amazon review as either positive or negative.
Query: Do not buy any of the self working books!

All of Karl fulves books are unhelpful. I wasted hours and hours reading and practicing the effects only to get negative results. Everyone thought the tricks were awful. This is why:With a few exceptions, self working tricks aren't very good. A trick needs a gimmich to be easy or one needs sleight of hand. For magic books, Mark wilsons books are superb. The tricks fool people including the mental magic section. This book is not good for magicians. The best way to become a magician as the experts say is to start with Sleight of hand. There are many sleights that aren't that difficult yet astounding.Of 5 of Fulves books, i have got one trick that is actually good surprisingly, the cups and balls which many many books talk about.