Book excerpt: First published in 1980, this reissue is a study of the sociology of language, which aims to bridge the gap between textbook and monograph by alternating chapters of explication and analysis. A chapter outlining a particular theory and suggesting general criticisms is followed by a chapter offering an original application of that theory. The aim of the authors is to treat text and talk as the site of specific practices which sustain or subvert particular relations between appearance and reality.