Written by one of the most eminent scholars in the field Ethnographies of Reason is a unique book in terms of the studies it presents the perspective it develops and the research techniques it illustrates. Using concrete case study materials throughout Eric Livingston offers a fundamentally different ethnographic approach to the study of skill and reasoning. At the same time he addresses a much neglected topic in the literature illustrating practical techniques of ethnomethodological research and showing how such studies are actually conducted. The book is a major contribution to ethnomethodology to social science methodology and to the study of skill and reasoning more generally.