Instruct: Classify Amazon reviews into positive or negative sentiment
Query: much better than the Gutz book!

Quality far better than Gutz; better examples, much more in depth. Still light on some areas I've had trouble with, but this one won't stay on my bookshelf. Minor nit - poorly formatted, especially in the 800 page "by class" section. 800 pages with only the chapter number and name make it hard to find the sub-section you need.