Students from Nanjing University of Aeronautics and Astronautics read aloud classical poetry in Nanjing, capital of east China's Jiangsu Province, April 21, 2017. Over 200 college students gathered here Friday on the eve of the World Book and Copyright Day, a yearly event on April 23 that is organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to promote reading, publishing and copyright.
