This book explores the problem-oriented interdisciplinary research movement comprised of Critical Discourse Analysis (CDA) and Critical Discourse Studies (CDS) for scholars, teachers, and students from many backgrounds. Beginning with a Preface by renowned CDA/CDS scholar Ruth Wodak, it introduces CDA/CDS through examples of what its research looks like, delineates various precursors to CDA/CDS and important foundational concepts and theories, and traces its development from its early years until it became established. After the relationship between CDA and CDS is discussed, seven commonly cited approaches to CDA/CDS are outlined, including their connections and differences, their origins and development, major and associated scholars, research focus(es), and central concepts and distinguishing features.  After a summary of critiques of CDA/CDS and responses by CDA/CDS scholars, the book provides an overview of its salient connections to other interdisciplinary areas of scholarship such as critical applied linguistics, education, anthropology/ ethnography, sociolinguistics, gender studies, queer linguistics, pragmatics and ecolinguistics. The final chapter describes how scholars use their knowledge of CDA/CDS to make a difference in the world.