Sherri Evonne Shepherd is an American actress, comedian, author and television personality. She first became recognized for recurring roles on the sitcoms Suddenly Susan, Everybody Loves Raymond and The Jamie Foxx Show before starring as Ramona Platt on the ABC sitcom Less than Perfect from 2002 to 2006, for which she was well received and was nominated for the BET Award for Outstanding Supporting Actress in a Comedy Series in 2005.
Martin E. P. "Marty" Seligman is an American psychologist, educator, and author of self-help books. Since the late 1990s, Seligman has been an avid promoter within the scientific community for the field of positive psychology. His theory of learned helplessness is popular among scientific and clinical psychologists. A Review of General Psychology survey, published in 2002, ranked Seligman as the 31st most cited psychologist of the 20th century.