In this task, you are given books product reviews in English language. The goal is to classify the review as "POS" if the overall sentiment of the review is positive or as "NEG" if the overall sentiment of the review is negative.

misleading title . Despite what the book title "Grammatically Correct", this book is mostly about punctuation usages.  Grammar is limited to a thin, single chapter.  There are not sufficient materials on grammar to alert you on incorrect usages, let alone correct them.    I would recommend "Painless Grammar" over this title
NEG

fantastic reference/crash course . This book is straightforward, breaking down each step of the heroic journey, from the hero's birth to apotheosis, using examples from various mythologies/religions to establish the classical pattern used in literature. If you just want to brush up and increase your ability to identify the pattern in literature/pop culture (ie. Aliens movies, The Matrix, Xena, Buffy, Providence...) this is a handy reference and a quick read
POS

shallow self-indulgence . I like to use the Amazon reviews when purchasing books, especially alert for dissenting perceptions about higly rated items, which usually disuades me from a selection.  So I offer this review that seriously questions the popularity of this work - I found it smug, self-serving and self-indulgent, written by a person with little or no empathy, especially for the people he castigates. For example, his portrayal of the family therapist seems implausible and reaches for effect and panders to the   "shrink" bashers of the world. This "play for effect" tone throughout the book was very distasteful to me

NEG