Jo Frost (born Joanne Frost on June 27, 1971) is an English nanny and the central figure of the reality television programme Supernanny, of which there are British, American and Brazilian versions. She has also written a number of books on the subject of child care. Biography Frost was born in Southwest London to an English father and a Gibraltar-born mother, Joa Frost. Jo has about 20 years experience in child care, working as a nanny in the United States and the United Kingdom, including her work with families on the hit television series, Supernanny, which is shown in over 47 countries around the world. Jo has written three books: Supernanny: How to Get the Best from Your Children (ISBN 1-4013-0810-4), Ask Supernanny: What Every Parent Wants to Know and Jo Frost's Confident Baby Care Her approach to parenting is based upon maintaining adult authority in a consistent manne