Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent Guide!

I'm an independent trainer and often look for resources that can keep me on top of my game. I have a library of training books -- some very comprehensive; some with only a few chapters of information that I can use. This book concisely covers mostly everything that I need to know as an experienced trainer. It's also a useful guide for new trainers or those who facilitate learning. Every bit of it was useful. If you need a good book to add to your own reference library, I would highly recommend it.