A teacher helps a visually impaired student read the catalog of a new book at the library of Chongqing Special Education Center in southwest China's Chongqing Municipality, April 22, 2021. Ahead of the World Book Day which falls on April 23, Chongqing Special Education Center launched a series of activities such as opening audiobook classes, organizing reading corners and offering more Braille books for visually impaired children. (Xinhua/Liu Chan)
