Leslie SokolLeslie Sokol, PhD, is a licensed psychologist and an internationally recognized leader in the field of cognitive therapy with more than thirty-five years of experience in practice, teaching, and research. She was a past director of education and one f the principal instructors with the internationally acclaimed Beck Institute for Cognitive Behavioral Therapy in Philadelphia. She has taught cognitive therapy to professional and para professional groups, nationally and internationally, on such topics as: depression, anxiety, personality disorders, stress management, psychosis, substance abuse, and couples' problems. Read More Read Less