Huge libraries like the Boston Public Library keep and display millions of books in their shelves. With this large number, it’s not surprising to find some books that have been long damaged to such an extent that they can no longer be used. Library custodians tend to dispose them to give way for newer and more relevant volumes.
However, there are many other factors that influence custodians’ decision to dispose of books. Besides the damage, it could also be that the library is simply running out of efficient space to store all the literature in. Space issues, ultimately, can be attributed to poor space management.