Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A big disappointment

I'm always looking for new ideas. I didn't find any in this book. The chapter titles are great, but then all you find is a 3 page chapter, with most of the content promoting the author of that chapter (yes, there are many authors). The book promotes different speakers, coaches, and others. I'm not happy that I paid money for such a shallow book.