When looking for books, use the computer digital library to search and see what kind of books you want to read. After that, I went to several rows of those bookshelves and looked for them one by one. The books are all at sixes and sevens, and they are all arranged casually according to the personal preferences of the staff. Some are arranged according to the color of the book, some are arranged according to the male or female title, and some are arranged according to a sentence of the title. The staff can't find their own books. If you want to read a book, you must read it if you like. If you insist on reading the books you have identified, you will be so tired that you can't find any books at all if you don't look for them for a day.