I read this book, went and did some shooting, and scored my best scores. Positive thinking really does work and this book is all about positive thinking and how to apply it to a shooting scenario in particular, but also other aspects of your lives as well. Highly recommended.
It's not quite what it seems and seems to be a re-hash of a story that has appeared elsewhere. I have a vague recollection that the Vietnam PoW account was covered in similar fashion in a Reader's Digest article a couple of decades ago. It's entertaining but slightly spoiled for me as it is contrived, rather than a true account. Some will undoubtedly gain more from it than I did.