Lynn Clark Lynn Clark is a licensed clinical psychologist and is Professor Emeritus of Psychology at Western Kentucky University. He has taught as an Adjunct Professor of Education for Boston University. Dr. Clark holds a Ph.D. in Counseling Psychology and is listed in the National Register of Health Service Providers in Psychology. He has authored SOS Help for Emotions: Managing Anxiety, Anger, & Depression, a cognitive behavior therapy handbook and program which is translated into four languages.