A fascinating overview of the most important psychological research into aging, with special emphasis on training and professional issues as well as science. Psychologists will have to play a leading role in dealing with the societal and personal implications of an aging population. This outstanding volume by leading experts shows how, by means of a comprehensive overview of the latest research into aging, its effects, and its implications for science, training, and profession. As this book shows, the aging of the population should be considered a positive phenomenon that reflects sociopolitical, educational, biomedical, and psychological development. The real threat for our population is not aging but disability, and the challenge for the 21st century is to reduce dependency and disability and thus improve well-being and quality of life, rather than increasing life expectancy.