The patchwork of the Commercial Press is a copy of You Jing's book in the Northern Song Dynasty, with few errors, and it is a rare version of Hanshu.

One hundred copies: book publishing terminology, also known as "books". It is a book printed or assembled with different versions of the same book. This is a metaphorical version of the title.

Commercial Press: It is the oldest publishing institution in China. 1897 was founded in Shanghai and 1954 moved to Beijing. Together with Peking University, it is known as the "Gemini of modern culture in China". The establishment of Commercial Press marks the beginning of modern publishing industry in China. Publishers headed by Zhang Yuanji and Xia Ruifang worked hard and laid a solid foundation for business development. As early as the beginning of the business, a joint-stock company was established, and since then, a large number of outstanding talents such as Gao and Wang have been hired to carry out diversified management centered on publishing, and their strength has grown rapidly. They compiled textbooks for universities, middle schools and primary schools, compiled large reference books such as Ci Yuan, translated and introduced western academic masterpieces such as Evolution and The Wealth of Nations, and published works by Lu Xun, Ba Jin, Bing Xin and Lao She. Organize four series of important ancient books, edit large series of books such as Universal Library and University, publish more than ten kinds of magazines such as Oriental Magazine, Novel Monthly and Nature, establish Oriental Library, go to work primary school, manufacture educational equipment and even shoot movies.

Hanshu: Also known as Pre-Hanshu, compiled by Ban Gu, a historian of the Eastern Han Dynasty, and annotated by Yan Shigu, is the first biographical chronology of China, one of the "Twenty-four History". Hanshu is another important historical book in ancient China after Shiji, and it is called "the first four histories" together with Shiji, Houhanshu and The History of the Three Kingdoms. Hanshu mainly describes the history of 230 years from the first year of Emperor Gaozu of the Western Han Dynasty (206 BC) to the fourth year of Emperor Wangmang of the New Dynasty (23 AD). Hanshu has 70 biographies in total 12, 8 tables 10, with a total of 100 articles. Later generations divided it into 120 volumes, totaling 800,000 words.