Research will be presented that describes the nature of human well-being, including factors such as subjective well-being (life satisfaction and positive feelings), social prosperity, material sufficiency, and psychological prosperity (for example, positive engagement). Each speaker will focus on the factors that have been found to influence well-being and the interventions that have been shown to enhance them. In addition, the effects of psychosocial and subjective well-being for the effective functioning of individuals and societies will be described. For instance, people who are high in subjective well-being perform better in the workplace, have better social relationships, and tend to live longer. Thus, it is important for societies to enhance the well-being of people not only because this is a desirable goal in itself, but also because it will help societies meet other goals as well. Because of the bidirectional causality between well-being and effective functioning in many circumstances, societies should monitor the well-being of citizens in national accounts of well-being that parallel the national economic accounts. Well-being in different societies, and within several societies, will be presented to explain the factors that can influence well-being.