al-Baghdadi: AP; Assad: Joseph Eid—AFP/Getty Images; Barra: Patsy Lynch—Corbis; Bezos: David Ryder—Getty Images; Boko Haram Girls: Dan Kitwood—Getty Images; Clinton: John Moore—Getty Images; Cook: Brooks Kraft—Corbis; Cox: Brad Barket—Getty Images; Cruz: Tony Gutierrez—AP; Ebola Caregiver: Pascal Guyot—AFP/Getty Images; el-Sisi: Maxim Shemetov—EPA/Corbis; Erdoğan: Sean Gallup—Getty Images; Ferguson Protestors: Scott Olson—Getty Images; Frates/Quinn: Lon S. Cohen—ALS Association Greater New York Chapter; Frieden: Brian Cahn—ZUMA Press; Goodell: Mario Tama—Getty Images; Hastings: Justin Sullivan—Getty Images; Jinping: Jason Lee—Reuters; Kalanick: Will Oliver—EPA; Kardashian: Mark Davis—Getty Images; Kerry: AAP images/Demotix/Corbis; Khamenei: Atta Kenare—AFP/Getty Images; Knowles: Gary Hershorn—Reuters; Koch Brothers: AP, Getty Images; Lawrence: Danny Moloshok—Reuters; Levin: Jeff Kravitz—FilmMagic/Getty Images; Ma: ChinaFotoPress/Getty Images; McConnell: Melina Mara—The Washington Post/Getty Images; Merkel: T.J. Kirkpatrick—Getty Images; Modi: Alex Wong—Corbis; Musk: Jason LaVeris—FilmMagic/Getty Images: Netanyahu: Dan Balilty—AP; Nolan: Matt Sayles—AP; Obama: Andrew Harrer—Bloomberg/Getty Images; Oliver: Jeff Kravitz—FilmMagic/Getty Images; Paul: Bill Clark—CQ Roll Call/Getty Images; Perry: Bill Clark—CQ Roll Call/Getty Images; Piketty: Michael Gottschalk—Getty Images; Pope Francis: Franco Origlia—Getty Images; Putin: Sasha Mordovets—Getty Images; Rimes: Casey Rodgers—AP; Rouhani: Jewel Samad—Getty Images; Rousseff: Ueslei Marcelino—Reuters; Swift: Christopher Polk—Getty Images; Warren: Andrew Harrer—Bloomberg/Getty Images; West: Francois Mori—AP; Widodo: Dimas Ardian—Bloomberg/Getty Images; Wong: Bobby Yip—Reuters; Yellen: Jewel Samad—AFP/Getty Images; Yousafzai: Carlo Allegri—Reuters