In this book, H. proposes to integrate sociology by clarifying its object, differentiating it from disciplines like linguistics and psychology that touch on similar topics, and to welcome back ethnomethodology. His argumentation refers to theories of Durkheim, Weber, Parsons and Garfinkel. H.'s second argument runs that ethnomethodology is neither a micro nor a macro approach within sociology, as it doesn't build structure, but is concerned with methods for building structure.