Children, guided by their parents, try to print out sentences with movable types at a printing workshop at Shenzhen Library on Sunday. The library organized events to promote traditional Chinese culture during the Shenzhen Reading Month. Movable type was first created by Bi Sheng (990-1051), who used baked clay. When movable type reached Europe in the 15th century, it revolutionized the communication of ideas. Sun Yuchen | 