Jon MarksJon Marks has taught English and trained English teachers in several countries, and is now a full-time ELT writer and editor, having also worked freelance as a writer and translator in the past. He has written previous English language workbooks for acmillan, Klett, Longman, Thomson and Delta Publishing, several of which he illustrated. Most recently, Jon has been developing a suite of courses for use in China. Read More Read Less