About the Authors

Catherine Walter Catherine Walter has taught and trained teachers in France, Britain and the United States. She now works freelance as a materials developer and teacher trainer, and is also the author of Genuine Articles and the co-author of The Cambridge English Course.

Michael Swan Michael Swan is a full-time writer specialising in English Language teaching and reference materials. He is co-author of The Cambridge English Course, Learner English and Effective Reading, and has extensive teaching experience with adult learners.