The key qualities of librarians are: first, they should have the spirit of service and dedication and be willing to make wedding dresses for others. Because the nature of librarians' work is service, they provide targeted knowledge or knowledge carriers, knowledge clues and methods of acquiring knowledge to those who need knowledge. Second, professional knowledge and skills, such as library science, edition science, philology, information retrieval, classification and cataloging, etc.
Librarians had better be library science majors. Because the courses offered by library science major are specifically aimed at library work and research.
Librarians have a lot of work, such as borrowing, reading room management, classification and cataloging, data sorting, book digitization, reference service, literature retrieval and so on.
To be an excellent librarian, we must be "service, diligence, study and persistence".