1. Book list: displays basic information of all books, such as title, author, publishing house, publication time, etc. So that administrators or users can check it.

2. Borrowing record: displays the current borrowing situation of books, including the borrower, borrowing time and return time, so that administrators or users can understand the borrowing situation of books.

3. Book classification: All books are displayed according to different classifications, which is convenient for administrators or users to find the books they need.