Simple Library-Manage-System This is a simple guide. When you open this Library Manage System and put down the login button. Note that there exists an admin at first who can add cards for people. This is the main window for admin... Now we add a new book named The Three Body Problem and a new card named 001. This is the main window for users... User or admin can search books in a convenient way. Fuzzy logic is supported! And user can simply borrow a book by select it and put down the button. Both user and admin can find this record.