Quite simply the best coaching book I've ever read.
In spite of being extremely busy with some major projects at present, I read it from cover to cover. It gives a simple exposition of the process, explaining ideas and techniques that are easy to apply and work extremely well.
I find myself using the ideas set out in this book, not only with the people in my team, but also with colleagues across the company (and with my kids at home, too). I will be recommending this book to both friends and colleagues.