The Book of Songs is the beginning of ancient Chinese poetry and the earliest collection of poems. It collects poems from the early Western Zhou Dynasty to the middle of the Spring and Autumn Period (11th century BC to 6th century BC), with a total of 311 poems. Six of them are Sheng poems, that is, they only have titles but no content. They are called the six Sheng poems (Nanmei, Baihua, Huashui, Youkang, Chongwu, and Youyi), reflecting about 500 poems from the early to the late Zhou Dynasty. social outlook during the years. ——Common sense literature.