Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Book has severe errors; treats users like idiots

This book is horrible. It treats the user as if they are without any unintelligence whatseoever. Further more, there are many inaccuracies throughout the book and on the actual CD which comes with the book. And even when corrections are made on their website, they can't seem to get their act together: there is actually an error on their errata website! If you are looking for a book that will actually teach you something without trying to secretly sabotaging your efforts, try another book by another publisher. You shouldn't have to spend your hard earned a book that is defective. Would you buy food that is burnt? Would you buy a car that's had its breaks cut? No, you wouldn't; don't buy a book that is full of mistakes. You deserve better.