This is a book about personal mastery for school leaders and their students. It references an ongoing concern about reflection in learning, education, and human development. Innumerable ideas and concepts about this have been advanced in the past; most claim more than they can deliver. The notes and reflections on personal mastery presented here are not intended to be yet another version of such traditional treatments. Rather, this book looks at personal mastery from a new perspective and considers it as the result of self-empowered education and practice.