Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst ever

This is the worst text book I have ever had.Pros:Towards the end it begins to make a little bit of sense, as long as you read it completely out of order.Cons:Poorly edited.The examples are sketchy and not organized well.The exercises are mind numbing, mostly because there is no reference point for most of them.I'm sure there are more cons, but I took the class a semester ago and cannot remember what they were. However, in the middle of the semester the instructor actually had us stop using it and found online references for everything for the rest of the course because he realized how disorganized, confusing and downright bad it was.