Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible book, period.

With so many wonderful books available on this subject, I wonder why Mr. Ross felt the need to write this one. It is basically an unintelligible tangle of botched text on what is actually a fairly straightforward and interesting subject. It is unfortunate that this bok is required reading for many undergraduate courses. I can only wonder how many potentially gifted practitioners never persue the subject further because of the bad impression this book leaves. Save your money and your frustration by seeking out any other book on the subject.