Helmet use can substantially reduce the risks associated with bicycle injuries, as these protective devices can prevent an array of serious facial injuries. A meta-analysis was carried out looking to summarize studies into the helmet use of adolescents and young adults, where the authors found a U-trend between age and helmet use, with the proportion of individuals regularly wearing a helmet declining first and then rising with reference to the progression of age. The increasing trend in young adults has been well-documented in the literature, but few studies have looked into helmet use among adolescents. In this book, produced in collaboration with the Bicycle Safety and Awareness Club in Ontario, Canada, the authors present survey studies conducted in independent schools in North America, looking into bicycle and helmet use of adolescents.