New Library Directors Handbook
Processing and mending are so unique to individual libraries that we won't go into details. Processing occurs when a library receives an item. Essentially it is the time it takes a librarian to prepare an item for check out, use at reference, or other purposes. It can include such things as creating spine labels, book pockets, catalog cards, and stamping an item with an ownership mark.
Mending occurs when an item needs repair. Again this depends upon the library. In some libraries volunteers handle it, while in others a library staff member is responsible. One thing to keep in mind is that an item may not be worth mending. Remove the book from the library collection if it is out-dated, torn, or dirty.