In this collection, twenty-four leading researchers analyze the middle years of the lifespan, paying close attention to the many different facets of adult development. They study the various changes that middle-aged adults experience--from children moving in and out to going back to work and dealing with promotions, firing, and topping out. This work explains how these different experiences interrelate and how a better understanding of them can foster successful midlife development. Much of the past work on midlife has been limited by its use of cross-sectional data, its focus on clinical populations, and the analysis of only one target group. Using a diverse set of longitudinal data, this volume provides a broader perspective by examining the similarities and differences in the midlife experience as a function of gender, social class, and birth cohort. Of interest to scholars as well as to those interested in the midlife period for clinical or personal reasons, this volume informs us of the enormous potential and promise amid the gains and losses of the middle years.