With the Girls Who Rocked the World series, we want to show that you don't have to wait until you grow up. The girls in this book didn't wait until they were twenty-one to start rocking the world. The Bronte sisters wrote novels as teenagers, Margaret Knight thought up her first invention at twelve, and Oprah Winfrey broke into show biz at seventeen. If you have a dream, carpe diem: seize the day! Make it happen!