No word or action speaks louder than a single tear. Tears of grief, sadness, despondency, hopelessness, relief, exhilaration, pride and ecstacy reflect an amazing range of emotional responses. Why are tears such a mysterious form of communication? Best-selling author and psychologist Jeffrey A. Kottler unravels the mystery as he offers surprising answers to such questions as: Why do we cry? How do men's and women's tears differ? How are tears interpreted...