Matt de la Peña is the author of Ball Don't Lie, Mexican WhiteBoy, We Were Here, I Will Save You and, most recently, The Living. Random House Children's Books hide caption

itoggle caption Random House Children's Books

Members of Doctors Without Borders put on protective gear in Conakry, Guinea. Cellou Binani/AFP/Getty Images hide caption

itoggle caption Cellou Binani/AFP/Getty Images