Nadia Lopez is the founding principal of Mott Hall Bridges Academy, where she is showing the world how underprivileged communities can beat the odds and create positive institutions that have a global impact.
Dr. Kakenya Ntaiya is the founder and president of Kakenya's Dream, an international nonprofit organization leveraging education to empower girls, end harmful traditional practices and transform communities in rural Kenya.
Suki Kim's investigation, "Without You, There Is No Us: My Time with the Sons of North Korea's Elite," chronicles her six months undercover in Pyongyang during Kim Jong-Il's final six months. She worked as a teacher and a missionary in a university for future leaders -- all while writing her book.
In 2004, Sal Khan, a hedge fund analyst, began making math tutorials for his cousins. Twelve years later, Khan Academy has more than 42 million registered users from 190 countries, with tutorials on subjects from basic math through economics, art history, computer science, health, medicine and more.