'A superb volume that weaves together the complex threads of sociological theory, linguistic analysis and practical application that characterise this important and influential field. The contributions offer a range and depth of coverage that is not found elsewhere. Highly recommended for all serious students of the social dimensions of language' - Ian Hutchby, Professor of Sociology, University of Leicester. This Handbook answers a long-standing need for an up-to-date, comprehensive, international, in-depth critical survey of the history, trajectory, data, results and key figures involved in sociolinguistics. . The Handbook consists of six inter-linked sections: The History of Sociolinguistics. Sociolinguistics and Social Theory. Language, Variation and Change. Interaction. Multilingualism and Contact. Applications. The result is a work of unprecedented coverage and insight. It is all here, from the foundational contributions to the field to the impact of new media, new technologies of communication, globalization, trans-border fluidities and agendas of research. The book will quickly be recognized as a benchmark in the field. It will provide a basis for reckoning its origins and pathways of development as well as an authoritative account of the central debates and research issues of today.