John Lyle is Professor of Sport Coaching at Leeds Beckett University, UK, and previously Dean of the School of Psychology and Sport Sciences at Northumbria University, UK. He has had a long and successful career in higher education, first in physical education and later specialising in sport coaching studies. He established the first professional diploma in sport coaching and played a significant role in the development of sport coaching as an academic field of study. He is the author of Sports Coaching Concepts: First Edition, and co-editor of The Coaching Process and Sports Coaching: Professionalisation and Practice. Chris Cushion is Professor of Coaching and Pedagogy at Loughborough University, UK. His research interests focus on understanding coach learning, coaching practice and coach behaviour, within a framework of developing a sociology of coaching. He has worked on projects with a number of governing body organisations and professional clubs, as well as developing coaching and coach education in non-sporting contexts such as the police and the military. He is Associate Editor of the journal Sports Coaching Review and has co-edited two recent books: Sports Coaching: Professionalisation and Practice and The Sociology of Sports Coaching.