Most of the contents of Shangshu were formed before Confucius, and Confucius' arrangement of Shangshu was "Introduction to Books, from Tang Yu to Qin Miao" (Historical Records Confucius Family). The content of the Book of Changes is also very old. It is said that the classic part was produced before the Spring and Autumn Period, and the biography part was written by Confucius. "Historical Records of Confucius" said: "Confucius liked the Yijing late, and recorded it in sequence, taught divination, said classical Chinese, read the Yijing and edited it by Wei."