Joan Steidinger is a licensed clinical and sports psychologist. She is designated as a Certified Mental Performance Consultant by the Association of Applied Sport Psychology (AASP) and is on the United States Olympic Committee's (USOC) Registry of Sports Psychology. Dr. Steidinger has worked with sport psychology clients for twenty-seven years, including with pro and amateur athletes. Dr. Steidinger's first book about female athletes, Sisterhood in Sports: How Female Athletes Collaborate and Compete (2014), won five literary awards. Dr. Steidinger lives in Mill Valley, California.