There has always been interest in understanding what constitutes the good life and the basis for creating it. Much has been written about health and wellbeing at multiple scales, from the physical and psychological through to the societal and environmental. Wellbeing has been studied from the perspectives of psychology, medicine, economics, social science, ecology, and political science. However, the interconnections between these scales and perspectives have received far less attention, even though understanding these interdependencies is critical to the comprehensive understanding of wellbeing and how to improve it. In Toward an Integrated Science of Wellbeing, the contributing authors connect these diverse scales and perspectives to better guide wellbeing research and public policy. The book is divided into four sections representing each domain of wellbeing research–psychological, human biological, societal, and environmental–but the authors extend their work to consider the interconnections between these domains, seeking integration across all scales throughout. Individual chapters explore topics such as indigenous perspectives and wellbeing, wellbeing in higher education, positive ageing, inequality and wellbeing, health and climate change, and greenspaces and wellbeing. This integrated approach offers a first step toward a more complete understanding of wellbeing that can propel wellbeing research and initiatives in novel and fruitful directions.