Various activities held across China for World Book and Copyright Day

Students who prepare for college entrance examination look up study materials in the library of Changli County in Qinhuangdao City, north China's Hebei Province, April 23, 2019. Various activities have been held across China for the World Book and Copyright Day, which is celebrated yearly on April 23 to promote reading, publishing and copyright. (Xinhua/Yang Shiyao)