Instruct: Classify a given review as either positive or negative.
Query: A rip-off...

Nothing more than an advertisement for his expensive mail-order non-counter strategies. The strategy he claims to present in this book is misrepresented as a non-counting strategy, when in fact it is (he basically says estimate the number of high cards remaining by watching which cards have been played, which is the definition of counting). If you want the actual non-counter strategy, you have to shell out $50 for a mail-order packet. Stay away.