据统计,截止1949年,我国历朝历代流传下的书籍达300万种。出版书籍,自古以来就是人类一种自觉主动的行为。刻在兽骨和青铜器上的甲骨文、铭文,已包含了出版物的元素,主要为个人行为。纸张和印刷术发明前,作为书籍主要形式的简帛,仍以个人的行为为主,但已有了组织性劳动。纸张发明后,由于其轻便、廉价,书的成本降低,很快取代了简帛。最 According to statistics, as of 1949, about 3 million books have been circulating in our dynasties. Publication of books, since ancient times, is a conscious act of mankind. Inscriptions on the inscriptions on the bones and bronze inscriptions, already contains the elements of the publication, mainly for personal behavior. Prior to the invention of paper and printing, bamboo slips, the main form of books, were still predominantly personal but organized. After the invention of the paper, it was replaced by Silk because of its lightness, cheapness and reduced cost of books. most