How much is an ancient book worth? For example, how much do books like Four Books and Five Classics, Analects of Confucius and Mencius cost in ancient bookstores? Or how much?

Although there was block printing in the Tang Dynasty, the price of books was still very expensive because of the high cost of block printing. After Bi Sheng invented movable type printing in Song Dynasty, the price of books began to decrease, but the specific price was different in different periods and places, and the thickness, content and quality of books were also different, so the price would be different and it was impossible to count. Private schools in Ming and Qing Dynasties all used Zhu's Notes on Four Books and Sentences, which cost about 1-2 silver.