Since the late 1980s, Critical Discourse Analysis (CDA) has become a well-established field in the social sciences. However, in contrast with some branches of linguistics, CDA is not a discrete academic discipline in the traditional sense, with a fixed set of research methods. The manifold roots of CDA lie in a myriad of disciplines including rhetoric, anthropology, philosophy and cognitive science, to name a few. This four-volume set brings together seminal articles on the subject from varied sources, creating an invaluable roadmap for scholars seeking to consolidate their knowledge of CDA, and of its continued development. Sculpted and edited by a leading voice in the field, this work covers the interdisciplinary roots, the most important approaches and methodologies of CDA, as well as applications in other disciplines in an updated and comprehensive way.