In this interesting book Harung and Travis have managed to convey their message in a readable way so that also a layman can understand it. Personally, I liked the simple and concrete results they present of their research on world-class performers and higher mind-brain development. Ingrid Kristiansen, only track runner who held world records for 5000m, 10000m, half-marathon, and marathon at the same time Harung and Travis introduce a compelling aspect of world-class performance in leaders - higher mind-brain development. They do so in a manner that busy senior executives can understand and apply. This book is essential reading for leaders wishing to ensure comprehensive and sustainable world-class excellence in themselves and their organisations. Lynne Sedgmore CBE, Chief Executive of 157 Group of UK colleges and former CEO of the UK Centre for Excellence in Leadership In this book, Harung and Travis offer a lucid, research-based, very readable, and convincing advocacy for mind-brain development as a discriminator between ordinary and world-class performance in several fields from athletics to management. This is a book for laypersons as well as professionals. I particularly liked the simple and concise definitions of terms and ideas and the vivid examples to illustrate the abstract concepts. Susanne R. Cook-Greuter, acknowledged researcher in higher self-development, USA The inner realm of man is highly structured and open to scientific exploration. In the investigations of this book, peak experiences are recognized as essential for peak performance. Transcendental Meditation, practiced by the author of this endorsement for 55 years, is a scientific technique to systematically produce peak experiences. Practiced regularly, this technique can make peaks become ordinary. The result is a state of consciousness in which effortless high performance and joy is a daily experience even during the most mundane and trivial chores of day-to-day living