木版印刷
Woodblock printing started in China in 593 AD. Traditionally, there have been two main printing techniques in East Asia: woodblock printing (xylography) and moveable type printing. In the woodblock technique, ink is applied to letters carved upon a wooden board, which is then pressed onto paper. With moveable type, the board is assembled using different lettertypes, according to the page being printed. Wooden printing was used in the East from the 8th century onwards, and moveable metal type came into use during the 12th century.