Antoinette M. Clarke and Tricia Clarke-Stone

Antoinette M. Clarke and Tricia Clarke-Stone are the co-authors of the book "Double Down: Bet on Yourself and Succeed on Your Terms." Together, they are known as the "Double Down Twins," but these twin sisters have found success on their own: Antoinette is the Vice President of Branded Entertainment & Innovation at CBS, and Tricia is an entrepreneur and the co-founder of marketing and advertising agency WP Narrative.