The textbook is aimed at students of social work, as well as practitioners and those interested in gerontology who wish to deepen their knowledge of aging issues. In light of the challenges posed by an aging society, topics such as care dependency, housing and the design of living environments, migration, and the use of technology by older people are addressed alongside the imparting of foundational gerontological knowledge. The textbook is divided into a foundational section and an application-oriented section. With its interdisciplinary range of topics, the reader receives a clearly presented overview of central gerontological questions. Theories and research findings are illustrated with case studies, and possibilities for transferring theory to practice are highlighted.