First, I'd like to say I paid $.25 for this book. I would've paid $30 for the amusing knowledge I've learned from it. This book served as a biological complement to other books I've read on body language and human behavior. I particularly enjoyed the chapters on lateral eye movements and cognitive activity. It was quite obvious when I had conversations with friends who are engineers and friends who are of the creative and artistic nature. Another memorable chapter talks about pathology and the hemispheres, specifically the neglect syndrome. what a nightmare!
The author also makes clear that many of their conclusions are based on observations and unpublished knowledge. A science which is hard to observe and experiment, much like any other emerging theories.