This book highlights the different roles of youth sport, from sport for all and community sport activities to elite sport and international competitions, to suggest significant new directions for youth sport research and practices. The collection addresses a range of prominent management and policy issues associated with the growing interest in research into youth sport. Major youth sport events such as the Youth Olympic Games and the European Youth Olympic Festival are included in this collection as important policy arenas. In addition, the collection addresses a series of under-researched topics including the welfare of young elite athletes, the process of talent identification and development in elite youth disability sport and how young athletes cope with emotional abuse. The contributors to this collection are drawn from a wide range of countries Canada, the United States, the Netherlands, the United Kingdom, and Norway. The book ends with an overview of the state of research into sport-based youth development and highlights trends and gaps in the literature suitable for further research.The chapters were originally published as a special issue in Sport in Society.