Penelope Leach is a research psychologist and one of the world's leading experts on child development. Her books include Your Baby and Child, Babyhood, and Children First. She is a fellow of the British Psychological Society, a visiting professor at Winchester University, and a senior research fellow at Birkbeck College, University of London, and at the Tavistock and Portman NHS Foundation Trust. She has been a member of the Professional Advisory Council of the American Institute for Child, Adolescent, and Family Studies, a member of the Curriculum Board of Sesame Street, a consulting editor of Child magazine, vice president of the Health Visitors' Association, and president and chair of the Child Development Society. Fran Tunno has been well known in Los Angeles as a morning radio personality and news reporter for more than fifteen years. She is also the voice of numerous radio and television commercials and has been involved in recording for the audiobook industry for several years.