Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Disappointed

The main problem with this book is that the references it sites are no longer valid. The addresses, web sites, phone numbers, etc. are not current. They may never have been from what I can tell. The second problem with this book is that it spends way too much time on "motivational" nonsense like "you can do it!", etc. The hard information is very scarce, and as I said before, is out of date and almost useless.