Defining and non-defining

please help me to simplify it by using defining or non-defining nouns or phrases


Allan Pease is a best-selling author. He is known internationally as 'Mr Body Language' . The Denfinitive Book of Body Language was one of his bestsellers. It has been translated into seventeen languages and has sold four million copies. Allen Pease's wife is called Barbara. She organises training courses and seminars for international companies and government orangisations on body language