JUDY WARDELL HALLIDAY, R.N., is a registered nurse who specialized in Psychiatry. She is the co-founder of the ministry Thin Within, and co-authored the books Thin Within, and Thin Again. Judy also volunteers at the Community Pregnancy Center in Mountain View, and serves as deacon at the Peninsula Bible Church in Cupertino. She and her husband, Dr. Arthur Halliday, live in Los Altos, California near their three children and four grandchildren.