If you don't have a high degree, you won't read so much and your memory won't be so good. The recommended books are probably not needed by others, or you can't explain why librarians should be so highly educated. This is all because if you work in a library, you must know something about these books. You can introduce books if you borrow them. You won't read so much without a high degree.
And my memory won't be that good. The recommended books are probably not needed by others, or you can't recommend them, and you don't know what books to recommend, especially those who read and borrow books in the library are all high-quality people.
The most important thing is that these administrators can understand the professional knowledge contained in all kinds of books and sort out these books in a targeted manner only if they have a high culture.