Interchange Third edition is a four-level series for adult and young-adult learners of English from the beginning to the high-intermediate level. The full-color Video Activity Book is designed to accompany the videos. It provides pre- and post-viewing tasks for the learner. There are follow-up and Language Close-Up sections for those who want to use the videos as the basis for a short course, or to review more thoroughly the contents of the Student's Book.
Jack Croft Richards is an applied linguist from New Zealand, specializing in second and foreign language education, teacher training, and materials design. He has written numerous articles and books. Most of his books and articles are in the field of second language teaching and have been translated into many different languages. He was appointed full professor in the Department of English as a Second Language at the University of Hawaii in 1981.