Book excerpt: The Routledge Handbook of Youth Sport is a comprehensive survey of the latest research into young people’s involvement in sport. Drawing on a wide diversity of disciplines, including sociology, psychology, policy studies, coaching, physical education and physiology, the book examines the importance of sport during a key transitional period of our lives, from the later teenage years into the early twenties, and therefore helps us develop a better understanding of the social construction of young people’s lives. The book covers youth sport in all its forms, from competitive game-contests and conventional sport to recreational activities, exercise and lifestyle sport, and at all levels, from elite competition to leisure time activities and school physical education. It explores youth sport across the world, in developing and developed countries, and touches on some of the most significant themes and issues in contemporary sport studies, including physical activity and health, lifelong participation, talent identification and development, and safeguarding and abuse. No other book brings together in one place such a breadth and depth of material on youth sport or the engagement of young people in physical activity. The Routledge Handbook of Youth Sport is therefore important reading for all advanced students, researchers, practitioners and policy-makers with an interest in youth sport, youth culture, sport studies or physical education.