Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book is a joke

Don't bother. If you think the text book is cryptic and are hoping to find something to help you through it, you are sorely mistaken if you think this is the answer. Actually shocked someone actually published this. The textbook has answers in the back to various questions at the end of each chapter. Well guess what, this study guide only expands upon the answers the text book provided. Does that really make sense? If you are really looking to add value, maybe perhaps the authors should have thought about answering and explaining all the questions (though that would make the assumption that they could actually provide answers that the text book doesn't). If you are having trouble with the book and the material, pass on this study guide and pay 10 times the cost with a person tutor, you will be better off.