How many of China's earliest collections of poems and songs are there?

The Book of Songs is China's first collection of poems, which contains 305 poems from the early Western Zhou Dynasty to the mid-Spring and Autumn Period. The Book of Songs has three parts: style, elegance and vulgarity, and praise. Among them, the style includes fifteen national styles, 160 songs. Ya is divided into "Ya" and "Ya", with 105 poems; There are forty poems including Zhou Song, Truffle and Ode to Shang Dynasty. Ethnic customs are mostly folk songs from all over the country, exposing class oppression and exploitation, which is also the glorious starting point of China's realistic literature. His realistic spirit of "Hungry people sing about their food and laborers sing about their affairs" has the greatest influence on later literature. The Book of Songs occupies a very high position in the cultural history of China and even the world.