In the "Handbook of the Clinical Treatment of Infidelity", a panel of seasoned experts reflects on issues central to affairs, and on how to help couples heal and learn from them. First, editors Fred Piercy, Katherine Hertlein, and Joseph Wetchler provide an essential overview of infidelity theory, research, and treatment. They discuss the effect of infidelity on couples, and delineate three types of infidelity - emotional, physical, and infidelity including aspects of both. They review the relatively new role of the Internet in infidelity, and explore infidelity within the context of co-marital relationships. Finally, they discuss the overarching theories and common models used in infidelity treatment of differentiation and one's engagement in extra dyadic relationships The book will also update readers on cutting-edge issues and current research on infidelity treatment from a variety of theoretical orientations including Emotionally Focused Therapy (EFT), solution-focused theory, communication strategies, transgenerational theories, Bowen systems theory and other relationally based theories. The "Handbook of the Clinical Treatment of Infidelity" is essential reading for today's (and tomorrow's) clinicians, who work with couples.