In this complete survey of the theories, methods, and key findings within applied linguistics, students are introduced to core research questions and the various approaches to tackling these. Provides a comprehensive introduction to this interdisciplinary field of research and practice, dealing with practical issues of language and communication. Takes a problem-solving approach, introducing students to key research questions and guiding them through the various ways of tackling these. Features additional study aids throughout, including chapter outlines, learning objectives, key terms, research questions and answers, study questions, and recommended further readings. Enables students to identify every-day language and communication issues, and to draw on their own personal experiences. Edited by a leading figure in the field, heading up an experienced and interdisciplinary team of contributors from the renowned department of applied linguistics at Birkbeck College, University of London -- resulting in unique combination of knowledge, skills, and strength from scholars who teach and research together.