A clinical psychologist in private practice since 1975, Judith Sills earned her Ph.D. at the Graduate Faculty of the New School for Social Research in New York City. She is the author of the bestselling book "Excess Baggage". She is well known for her appearances as a guest expert on romantic relationships, family issues and general psychology on numerous television and radio programs including "The Oprah Winfrey Show" and "Sally Jessy Raphael". She has written articles for national magazines including "Mademoiselle, Cosmopolitan, Family Circle" and "O" magazine. Sills lives in Philadelphia.