Jackie Cochran and Jerrie Cobb were both skilled, experienced pilots at a time when female aviators were few and far between—and faced sexism and opposition every step of the way. Cochran led the Women's Auxiliary Service Pilots during World War II and was the first woman to break the sound barrier. Cobb learned to fly at twelve and was an early advocate for female pilots in NASA's space program. This dual biography is a compelling portrait of two remarkable women "and their historic battle for female spaceflight."