The evolving phenomenon of our continuously aging society raises important practical and ethical issues and has resulted in the increased significance of, and interest in, the field of gerontology. From this perspective, J. A. Thorson has revised and expanded his insightful and informative text to serve as a comprehensive introduction to this multidisciplinary field. Aging in a Changing Society assumes no prior knowledge of gerontology, sociology, or psychology. The text is well-referenced and contains helpful features such as illustration boxes, discussion questions, resources, and an extensive glossary of essential terms. Along with a general updating and refining of material to make the text both current and forward-thinking, this 2nd edition features an expansion of both practical information and the theories of aging. In addition, the text has been made more international in scope by providing comparative information of aging in the US and around the world. This book was designed for upper-level undergraduate and graduate gerontology courses in departments of psychology, sociology, gerontology, counseling, and social work, and will be of interest to those preparing for a career in the mental health professions.