Assuming no prior knowledge, books in the series offer an accessible overview of the subject, with activities, study questions, sample analyses, commentaries and key readings – all in the same volume. The innovative and flexible 'two-dimensional'structure is built around four sections – introduction, development, exploration and extension –which offer self-contained stages for study. Each topic can also be read across these sections, enabling the reader to build gradually on the knowledge gained. : Drawing on the strengths of the original textbook, this second edition features: new readings from Christian Jones, Daniel Waller and Thomas E. Payne; revised questions, suggestions and issues to consider; and a brand new companion website featuring interactive audio files of authentic spoken English, links to further reading and new grammar tasks. Written by an experienced teacher and researcher, this accessible textbook is an essential resource for all students of English language and linguistics.