Mahmoud Gaafar worked for the United Nations and Radio Cairo and now authors print, radio and TV resources for the Arab world. Michel Thomas was head of the Michel Thomas Language Centers and taught languages for over fifty years, primarily in New York, Beverly Hills, and London. Over a period of twenty-five years he developed a unique and revolutionary learning system that made him the world's leading language teacher. He has taught celebrities, diplomats, dignitaries, academics, and business executives.