The official collection of books is political, and most of them are books that are conducive to maintaining its rule. Moreover, the change of dynasties and cities is often destroyed. On the other hand, private books are not only varied, but also well preserved because of their relative secrecy.
The first big family with books should be Confucius in Qufu. Confucius' collection of books originated from Confucius. We all know that Confucius was a famous scholar and educator in the Spring and Autumn Period. One of his greatest achievements is the preservation of a large number of pre-Qin ancient books. Confucius extensively collected ancient books and studied and sorted out poems, books, rituals, music, spring and autumn. So Confucius should be the first private book collector. These books have been spread to the eighth Sun Kung Fu and Teng Kong, just in time for Qin Shihuang to order them to be burned, and they hid them in the wall to protect them. This shows how much the Confucius family values books. The tradition of Confucius' collection of books has not changed for thousands of years, and it has accumulated over time. By the Qing dynasty, there were hundreds of thousands of books. It is worthy of being a thousand-year-old family with a long history of poetry and books.