The discipline of library and information science is basically a major that focuses on the management and research of books, archives and other information materials. It was originally called the management of books and archives. There are not many universities offering this major, and Renmin University is the most famous. It should be said that this technical term is an unpopular major, but it is also a major that libraries at all levels and university libraries are currently lacking. If you want to engage in research and management in this field all your life, I think with the increase of the proportion of e-books in the library collection, using big data may be able to dig out treasures that are difficult to dig out from the massive information in the library. This aspect will certainly have great development prospects in the future.