Canfield, Jack (the Foundation For Self-esteem), Hansen, Mark Victor, Hansen, Patty (3) Jack Canfield, Mark Victor Hansen, Amy Newmark (3) Canfield, Jack (the Foundation For Self-esteem), Hansen, Mark Victor (2) Canfield, Jack, Hansen, Mark Victor (2) Canfield, Jack (the Foundation For Self-esteem), Hansen, Mark Victor, Kline, Carol (appalachian State University Usa) (1)