Jeremy Harmer is a well-known figure in the field of English language teaching. He has authored several influential books, including "The Practice of English Language Teaching," which is widely used by teachers around the world. His work focuses on practical teaching methods and the importance of understanding learners' needs. In addition to his writing, Harmer is a sought-after speaker and trainer, often conducting workshops and seminars for educators. He has contributed significantly to the development of teaching practices and has been involved in various educational projects, enhancing the quality of English language instruction globally.