Biography and formation of human beings are interrelated research perspectives in which relationships between generations are quite significant. In social work (Soziale Arbeit), theories of formation and theories of biography constitute the context for the understanding of cultural transmission in social relationships, the analysis of patterns of living and the description of problematic situations. Although life stories and formation stories are experienced as individual and unique, yet they reflect specific structures. The structures created in the course of life are closely linked to the concept of generation. The generation perspective is expressed in family relationships, but it also has a social context. The article discusses the relationship and importance of formation and biography in intergenerational relations, in the light of social change.