Can discourse analysis techniques adequately deal with complex social phenomena? What does 'interdisciplinarity' mean for theory building and the practise of empirical research? This volume provides an innovative and original debate on critical theory and discourse analysis, focussing on the extent to which CDA can and should draw on the theory and methodology of a range of discilplines within the social sciences. The contributors to the volume are themselves international and multi-disciplinary, and the collection is organised to address in turn the development of CDA over the past two decades, the debate on interdisciplinarity, implicactions for discourse -analytical theory and applications.