Robert Vernon and Kyung-il Kwak:
Robert Vernon spent three years living in Korea where he also worked as an English teacher. He co-authored the bestselling TOEIC Clinic Beginner Plus, a billingual Korean-English book, aimed at learners preparing for the English language TOEIC test. Kyung-il Kwak has an MA in International Trade and works for a South Korean multinational electronics company operating in Europe. She has a background in teaching Korean to learners of all levels.