Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good book, a little light

This is not a heavy, or in depth tome. It is very helpful and informative. Basically if you are looking for someone with real-life experience to sit down with you for a few hours and give some helpful pointers learned through their experience, then this is the book you need. If you want a more thorough, classroom level of depth then look elsewhere. For me, this is what I was looking for. The vendor delivered the book faster than promised in it was in great shape. Would buy from them again.