Integrity: Libraries usually need paper periodicals to be complete, that is, they contain all page numbers and contents. If a periodical lacks some page numbers or contents, the library may refuse to accept it or ask for supplements.

Binding style: The library may have specific requirements for the binding style of paper periodicals. For example, some libraries may require periodicals to use specific binding methods, such as hardcover, to protect the integrity and aesthetics of periodicals; Other libraries may pay more attention to the usability and convenience of periodicals and require the use of paperbacks.