Ruth Gairns and Stuart Redman have been involved in English language teaching for over twenty-five years, and have a particular interest in vocabulary learning and materials development. They have both taught in the United Kingdom and overseas, and have considerable experience of teacher training and in-service teacher development. They have written coursebooks, books for teachers, reference, and resource books. They are currently researching syllabus design, and have recently published a new four-level adult course, natural English, with Oxford University Press.