... flow ...

Mihaly Csikszentmihalyi -- Flow: The Psychology of Optimal Experience (amazon)

John Douillard -- Body, Mind, and Sport: The Mind-Body Guide to Lifelong Health, Fitness, and Your Personal Best (amazon)

Charles Duhigg -- The Power of Habit: Why We Do What We Do, and How to Change (amazon)

William Glasser -- Positive Addiction (amazon)

Steven Kotler -- The Art of Impossible: A Peak Performance Primer (amazon)

Steven Kotler -- The Rise of Superman: Decoding the Science of Ultimate Human Performance (amazon)

Adam Sinicki -- Adaptive Training: Building a Body That's Fit for Function (amazon)