What is the earliest book in the history of China?

The earliest historical record in China should be the Book of Changes written by Zhou Wenwang, which was written by Zhou Wenwang Jichang in prison and was regarded as the sacred book of Confucianism by Confucius in the Spring and Autumn Period. The earliest writing in China is Oracle Bone Inscriptions in Shang Dynasty. Now there are 6,000 in Oracle Bone Inscriptions and only 2,000 in Oracle Bone Inscriptions. Why is it so hard to decipher? The reason is that Oracle Bone Inscriptions is Oracle Bone Inscriptions, which is used for divination and sacrifice. It is difficult to decipher Oracle Bone Inscriptions, because Oracle Bone Inscriptions is a priest, not a king and a vassal. Oracle Bone Inscriptions is mainly the name of ghosts and gods, which is incompatible with modern people's thinking.