Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not really a review

Hi, I haven't read the book yet, however, as a note on this particular form of fighting. The Pak Mei White Eyebrow style which originates from Shaolin, is a forbidden art. Refered to as one of the dark arts of the martial arts world, it was shunned by most of the Shaolin practicioners. That may attribute to the vagueness of the book, as this is considered a dangerous art form.