Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lots of pages, low on advanced content.

This is a huge book, approximately 665 pages, however it is quite hard to find anything of help in it. It's great if you are going to go through and do all of the examples, I'm sure you would learn something from it, but it's terrible when you want a quick answer, or you really need to know the details on something. I frequently find myself searching the net instead of this book because it is huge and there is no good way to find the answers. Additionally, when you do find the answers it is just a continuation of a previous example and does not explain in depth on how to use the various functions and such.In conclusion, it's probably just fine if you are a student and want to go page by page and read the book and learn by examples. But it's terrible as a quick reference, and for more advanced users needing in-depth information you should look elsewhere.