Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book make my feel bad for a moment and some tests in end have suggestions for buy more book from same publisher

As I see that, book have catchphrases and horror tricks, like dont have explanations for some tests in end of book, only comments like something as "If you not understand it now, after all what you read, you need buy "Science for Dummies, Math for Dummies, English for Dummies, Algebra for Dummies, Geometry for Dummies... etc"- what really agressive advertising, make peoples feel scared, stupid and affraid and make them need buy more books from this publisher...Its scare my for a moment!Most helpful for my Peterson ASVAB, what have good explanation for ALL tests. I never not bui something "for dummies" again.