“Enjoying The Playmaker's Advantage, a new book by Daniel Peterson and Len Zaichkowsky. Great explorations in there, not just simple answers. No surprise, as I got a lot from speaking with them, and I was the interviewee!” 
–David Epstein, New York Times bestselling author of The Sports Gene

“An easy to read book that blends science and coaching practice in a manner in which many books are unable to achieve. I would recommend this to any coaches or scientists interested in improving their team’s performance.”
–Damian Farrow, PhD, Professor of Skill Acquisition, Victoria University & Australian Institute of Sport

“The Playmakers Advantage shines needed light on the art and science of building healthy, strong and resilient young athletes.”
–Avery D. Faigenbaum, EdD, FACSM, FNSCA, Professor, Department of Health and Exercise Science, The College of New Jersey

“The Playmakers Advantage effectively explores and integrates the technical, tactical, mental and physiological aspects of a playmaker’s makeup. A great read for parents, coaches and players, especially those in team sports.” –Dave Hadfield, Mental Skills and Coaching Consultant (currently working with New Zealand Rugby, World Rugby, Toronto Blue Jays)

“To all in the world of sports, I would highly recommend The Playmaker’s Advantage. Len Zaichkowsky is a genius. The book beautifully blends between science and application. Great stuff!” –Scott Goldman, Ph.D., Director, Performance Psychology, Miami Dolphins

“Loved this book on the mental side of performance from Dr. Len Zaichkowsky and Daniel Peterson! A quality read for athletes and coaches.” –Steve Magness, Head Cross Country Coach, University of Houston and Co-author of Peak Performance

“Excellent book by Daniel Peterson and Leonard Zaichkowsky. Amazing training that is already being implemented by some of the best.” –Desi Druschel, Assistant Baseball Coach, University of Iowa

“I couldn't support this book more. The man that introduced me to the field of sport psychology, Dr. Zaichkowsky’s new book is a must read for the field. Terrific for youth sport parents and coaches, and anyone that wants to move from the B to A team!” –Scott Barnicle, Ph.D., Assistant Professor of Sport and Exercise Psychology, West Virginia University

“I recommend The Playmakers Advantage by Leonard Zaichkowsky & Daniel Peterson for anyone who is interested in the role that cognition plays in the development of elite team athletes. As a huge sports fan, a parent and a 'bit' of a positive psychology junkie, the authors had me at the title with this one!” –Katie Comtois, MS, MAPP, Executive Leadership Coach

"One of the most valuable books I have read in a long time. How often as coaches have we said it is all in your head. The Playmaker's Advantage shows how to use what’s in our head to our competitive advantage."
–Vern Gambetta, Director of Gambetta Sports Training Systems