Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible book

I won't say this is the worst Math book I have ever used, but it is certainly up there. No nearly enough examples. He proves the theorems and then throws 15 exercises at you with having done even one. Of course, on some chapters, he does have "some' examples, but not nearly enough. My professor started using this book and switched in the middle of the course because of the difficulties the students were having.Steven Abbott's book is much much better.