Bamboo slips, bamboo pieces used for writing in ancient times, also refer to bamboo pieces with characters written on them. Written materials from Warring States to Wei and Jin Dynasties. It is a kind of long and narrow bamboo (also called wood chips, called wooden slips), which are wider than Jane's. Bamboo slips are called bamboo slips and wooden slips are called wooden slips. All the books are written with brush and ink.

The earliest paper existed 2200 years ago in the early Western Han Dynasty, but it was still rough and not widely used. 105, Cai Lun was considered as the originator of modern papermaking after improvement. In ancient China, silk was used as a carrier of knowledge. It is generally called silk, and some people call it silk. Because its color is white, it is also called a plain book. Silk script originated in the Spring and Autumn Period and prevailed in the Han Dynasty, which coexisted with bamboo slips and subsequent writing carriers for a long time. Silk is soft and light, wide in format and suitable for painting, which are advantages that bamboo slips do not have.