Schools are unique places. They pay a central role in the formation of young people. The importance of how young people are educated and how they are encouraged to live and learn cannot be underestimated. This book advocates for the fostering of agency not only amongst school personnel but also amongst younger generations for health and sustainability. It provides the reader with a new lens with which to discover health promoting schools and education for sustainable development. It invites the reader to look more deeply into both and to accompany the authors on a journey of discovery of the real potential for each to enhance the practice of schooling.