This sixth edition has been revised and updated throughout, using key concepts and examples to guide the reader through this fascinating area, including: • New material on gender, social media and online use of language, codeswitching, and language policy • An updated companion website that is fully cross- referenced within this book and features video and audio materials and links to useful websites • Revised examples and exercises that include new material from Asia and South America • Fully updated further reading and references sections An Introduction to Sociolinguistics is an essential introductory text for all students of sociolinguistics and a splendid point of reference for students of English language studies, linguistics, and applied linguistics.