As the Baby Boomer cohort moves from middle to later adulthood, it is likely this generation will redefine what it means to age. Growing older will no longer be synonymous with loss and decline. In fact, it is true that the majority of older adults today live fulfilling lives. This special issue discusses ways in which older adults can age successfully--that is--how individuals can maintain their physical and cognitive health, as well as maintain a healthy engagement with life. Also addressed are the universal challenges faced by older adults in their pursuit to age successfully. The objective of this collection is to serve as a stimulus to future research on aging and change in the later years of life. It presents an outstanding array of articles that cover a range of central issues in this area of study. Each author provides a unique insight into the mystery and challenge that awaits us all: the ability to age successfully.