Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Are you kidding?

This is not a book for technically oriented people looking for answers on web services. Questions you have on things such as scalability, security, and business models are either not covered or are glossed over at a 50k foot level. Little or no examples are given that will stand up to a developers scrutiny. There are no new ideas here. None. There are no solutions to the important questions here. None. This is yet another book in the "Expert's Series". I've bought a number of books recently by Apress. For most of these, I have wondered if the author learned the subject in order to write the book. I am convinced that this is the case here.