Instruct: Classify a given review into positive or negative sentiment.
Query: Not very happy.

This book is fine, the content is good and helpful for the class; however, whoever sold it to me tore out a BUNCH OF PAGES. chapter 5, a good amount of chapter 13, is gone. (probably more that I havent gotten to yet. so if that person is reading this, just know that I'm not happy. The book doesn't do me too much good when I don't have half the pages... So thanks for making me pay like 50 bucks for a book that sucks and doesnt help me with the class!!! I find myself struggling all the time. Hope you don't do this next time.