1. The two major sources of pre-Qin poetry are the Book of Songs and the Songs of Chu.
2. The poems written before the Qin Dynasty unified all countries are pre-Qin poems. Pre-Qin poetry includes the Book of Songs, Songs of Chu, some traditional folk songs from the Spring and Autumn Period and the Warring States Period, and some primitive social ballads. Folk songs and ancient ballads are collected in "The Source of Ancient Poetry". Pre-Qin poetry is the source of traditional Chinese poetry, among which "The Book of Songs" is the source of Chinese realist poetry, and "Chu Ci" is the source of Chinese romantic poetry.