Abstract
Aging experiences are multidimensional, and social workers need to know theoretical perspectives on aging which are useful in understanding the diversity of experiences of individuals in later adulthood. This article describes and discusses four theoretical perspectives on aging which are not usually presented in Human Behavior and the Social Environment textbooks but which contribute to understanding of diversity in later adulthood: Atchley's continuity theory; Fisher's age-independent periods; Stoller and Gibson's perspectives on gender, race and ethnicity, class, and the life course; and Friend's theory of successful aging of gay men and lesbian women.