Instruct: Classify a given review into positive or negative sentiment.
Query: Out-dated and mis-leading

I purchase the book based on some review. But it turn out it was really out-dated and some of the term the author himself can't explain well. It does has pulp fiction style, not suitable and serious enough for the real world at all. $65 for a 279 paged (2/3 of junk non-sense), pocket size out-dated little book? not worth it.