"A treasure trove for sociolinguistic researchers and students alike. Edited by three leading sociolinguists, the 39 chapters cover a wealth of valuable material... And the cast list reads like a veritable Who's Who of sociolinguistics, with a refreshing number of younger scholars included along with more familiar, well-established names... This is a book that I will reach for often, both for research and teaching purposes. I will recommend it to my postgraduate students, and many of the chapters will provide excellent material for discussion in our advanced undergraduate sociolinguistics course." - Janet Holmes, Discourse Studies "The best, the most complete and the most integrated handbook of sociolinguistics of the past decade." - Joshua A. Fishman, NYU and Stanford University 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. It 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.