Don MacNaughton is an experienced sports psychologist with a track record of working with individuals, teams and organisations. I've used some of Don's web materials, and heard him speak in person, and this book is a great distillation of many of the key ideas he conveys in his in-person and internet-based training.
The book is well set out, and easy to follow. Don uses a 'twelve laws' structure, which results in bite-sized chapters. It can be read in a few hours, but the structure also makes it easy to read a few chapters, set the book aside, and pick it back up again at the place you stoppped. It's also straightforward to find a section you want to re-read. I read the book through once, and then re-read it over a week, giving myself a chance to think over each section in turn.
While I'm interested in sports coaching, the ideas in Don's book are easy to apply to life coaching. If you changed some of Don's examples to business quotes, you'd have a great volume on career success. I'm confident that many people with little or no interest in sports will get a lot from the book.
Don's core argument is that success doesn't happen by accident, and that success can be derailed or promoted by your mind set. He gives practical ideas for improvement, and many sports examples where success and failure was affected by a person's mental approach. If I had to pick key ideas, I'd say that Don's recognition that if you don't do anything then nothing will change, and his emphasis on identifying opportunities for learning and growth, are particularly useful.
The book concludes with a summary of the main ideas, and details of free on-line support materials. All in all, a good, useful volume that many people should find of benefit.