Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Buy This "Book"

First of all, I looked at all the 4 and 5 star reviews and noticed that all, save one, reviewer has never reviewed another book. The one exception had one other review. I have to suspect that these reviews are shills.The language, the structure, and the content are all sub-standard. Look elsewhere. You have been forewarned.