Dr. Peter Marshall is a psychologist who has written three books: "Now I Know Why Tigers Eat Their Young: How to Survive Your Teenagers with Humour," "Cinderella Revisited: How to Survive Your Stepfamily without a Fairy Godmother" and "Sex, Nursery Rhymes and Other Evils: A Look at The Bizarre, Amusing, Sometimes Shocking Advice of Victorian Childcare Experts," He is a member of the National Speakers Bureau and speaks across Canada and the United States.