Television displays four representatives reading a letter for the “Reading Half Hour” activity held at Shenzhen Library to mark World Book and Copyright Day on Thursday. The letter is from a father to a medic who supported Hubei Province during the COVID-19 outbreak. In its fifth year of holding this event, the library gathered representatives from Hubei and the cities of Guangzhou and Macao to join the reading online. Through AR technology, audiences can enjoy live shows from different locations on online platforms.Sun Yuchen