Instruct: Classify Amazon reviews into positive or negative sentiment
Query: save your money, surf the web instead

I was disappointed. While the author is clearly well-intentioned, there simply isn't enough new information here to justify buying this book. Anyone with an hour or two to kill can get all the information presented in this book for free on the web.If there had been something more useful on joining the disciplines of Reiki and Aikido(+Ki training, kiatsu), this could have been a very exciting and useful intermediate to advanced book for people on either path, even if it's a short one. Unfortunately, it's exactly what it says it is, a very basic book for beginners. So basic it's really not worth the trouble.