Pieter Koster Author

Jonathan Crichton has over fifteen years' experience in teaching and research in English language education and has published widely in related areas. He holds a Ph.D. in Linguistics and an MA in Applied Linguistics.

Pieter Koster has many years experience in English language education and the design and development of learning materials. He is the author of four school textbooks published by MacMillan in Japan and Compass in Korea and Taiwan.