Facebook's Mark Zuckerberg and his wife, Priscilla Chan, are a shining example of a young couple who are not only successful in their careers, he as a tech entrepreneur and she as a pediatrician, but who also serve as role models for socially conscious philanthropy. This accessible volume highlights Zuckerberg's accomplishments creating the social network that changed the world, Chan's desire to serve a greater good, and the couple's "Giving Pledge," a promise to give away most of their income to charity and research. Readers will be inspired by two bright stars who want to make the world a better place for their children.