Database design: The database of the software is classified and stored according to the type of books, not according to the number of albums of each book. Therefore, when searching and displaying data, summarizing the number of books may be more in line with the structure and design of the database.

Statistics: The software provides the statistical function of book inventory, so that users can know how many different books are in the inventory, which is more meaningful for libraries, bookstores and other institutions, because they are more concerned with providing a variety of books, not just the number of photo albums of each book.