The Book of Songs is the earliest collection of poems in China, including 35 poems, so it is also called "Three Hundred Poems". The Book of Songs was regarded as a classic in ancient times and had a far-reaching influence on later literature. However, this does not mean that The Book of Songs is the only poetic work with the functions of "arousing, observing, gathering and complaining". In the history of China's poetry, many other poets' works also have these functions.