This book presents information needed for people working with concussion recovery, as well as anyone currently experiencing a concussion, especially those which are sports-related. There is currently no defined body of knowledge that practitioners in this field need to know, and this book serves to fill that gap. While medical attention is often needed at the beginning of the injury, the most important parts of ongoing treatment are behavioural, namely managing and monitoring the patient and engaging them in appropriate "active rehabilitation" strategies. The competencies described here address multiple constituencies, from medical personnel to patients. The book is designed to direct the reader to appropriate sections in a straightforward manner supported by evidence and research. The core focus here is on schools, where the consequences of sports-related concussion are significant. However, the knowledge competencies are broad enough to provide a solid education in concussions and what to do about them across various environments.