Terry Locke 
Critical Discourse Analysis [PDF ebook] 

This introductory text explains the use of critical discourse analysis (CDA) as a research methodology. Beginning with an explanation of the key words and theories behind CDA and how these can be used in research, Terry Locke proceeds to provide a lucid demonstration of the application of these series to both interpretation of print text and the analysis of conversations. The book is an essential guide for students encountering critical discourse analysis for the first time.