This book presents eleven contributions from scholars shedding light on different aspects of well-being during the life course, covering diverse parts of the world, and employing research methods ranging from reviews, secondary data analysis, and qualitative approaches to pilot studies and quantitative investigations. The book provides a broad overview regarding the topic of well-being as well as insights into very specific matters. The determinants of well-being range from physiological, social, psychological, spiritual, and economic factors which can be examined individually or concerning their interplay. They can be studied on the micro, meso and macro levels, from an individual, group-related, organisational or societal perspective. This book takes on the challenge of doing justice to this diversity to create a holistic picture.