What do the Four Books and Five Classics refer to? What are the three biographies in the Spring and Autumn Period? What are the representative works of pre-Qin poetry?

Four books: University, The Doctrine of the Mean, Mencius and The Analects of Confucius.

Five Classics: The Book of Songs, Shangshu, Book of Rites, Zhouyi and Chunqiu.

Three changes in the Spring and Autumn Period: Zuo Chunqiu bian, Chunqiu Gongyang Zhuan and Chunqiu Zhuan.

Representatives of pre-Qin poetry: The Book of Songs and Songs of the South.