CSN is pleased to provide this resource guide on the critical issue of traumatic brain injury (TBI). Studies have found that the four most common causes of TBI are falls, motor vehicle/traffic crashes, struck by/against events, and assaults (Centers for Disease and Control Prevention 2010). In this resource guide, we provide information on fall prevention, motor vehicle safety,bicycle safety, sports safety, and abuse prevention as they relate to the prevention of TBI. The purpose of this resource guide is to help state Maternal and Child Health and Injury and Violence Prevention programs respond to the needs of infants, adolescents, and adults who are at risk for TBI. This resource guide contains links to data, research studies, information on policy and legislation, prevention strategies, tools for program planning, and a list of national organizations that address TBI. For a comprehensive look at this important issue, visit the companion CSN Sport-Related Concussion Fact Sheet Series.