1. Bibliographic information: including important information such as title, publisher, author and publication date, so that librarians can record, classify and index the bibliography.

2. Shelf information: The shelf number of each book in the library is convenient for readers to find the books they need quickly.

3. Cataloging information: The library catalogued and marked books, and established bibliographic tables, classified catalogues and book catalogues.

4. Collection information: record the quantity, location and status of each book owned by the library, such as whether it can be borrowed, lent or under maintenance.

5. Purchase records: the purchase date, price, purchase channels and other information of each book are used for the financial management and budget allocation of the library.

6. Borrowing record: record the information of books borrowed by each reader, including borrowing time, return time and borrowing times, for the library to make statistics and analysis on readers' borrowing behavior.

7. Reminders should also be given: record the date when the reader should return the book and send a reminder notice to avoid overdue borrowing or damage to the book.

Please note that the information content and management methods of different library acquisition departments may be slightly different, and the above are just common contents. The specific situation may be different due to the library scale, lending policy, system functions and so on.