 The book expands the theory of social practice to show how changes in the structure of a society's kinship network affect the development of social cohesion over time.By rigorously examining the genealogical networks of the Turkish nomad clan and associated clans that are studied, the authors explore how changes in network cohesion are indicative of key processes of social change.This approach alters in fundamental ways the anthropological concepts of social structure, organizational dynamics, social cohesion, marriage strategies, as well as the study of community politics within the dynamics of ongoing personal interaction.