This is a definitive introductory text to modern sociolinguistics that looks at the study of language and society through the concept of identity. It uses these sociolinguistic constructs of identity to tie together current concepts and methods in the field, offering a full overview of the discipline, both past and present.Deckert and Vickers adopt an interdisciplinary approach, introducing work from a variety of fields that examine sociolinguistic data, from linguistics to anthropology, sociology, psychology and education. The book moves from looking at language varieties and globalization to a close examination of language in social interaction, covering the concepts of ideology and power. Throughout, the authors offer keen insight into all of the topics, issues and methods that students of language and society will need to understand. The chapters contain a range of pedagogical features, including key terms, study questions, chapter summaries and further reading. This is an essential new text for all those studying contemporary sociolinguistics, suitable for undergraduates and postgraduates alike.