Students mark World Book Day at Chinese Culture Center in Vientiane, Laos

Students read books at Chinese Culture Center in Laos during a reading activity of World Book Day in Vientiane, Laos, April 23, 2018. The United Nations Educational, Scientific and Cultural Organization (UNESCO) designated April 23 as World Book Day in 1995 to pay tribute to books and authors and to encourage people to discover the pleasure of reading. (Xinhua/Liu Ailun)