[OliverJones]

In my part of the US (Northeast Massachusetts) libraries address the cost of duplicate items by joining into consortia. I can, from the online catalog, "place a hold" on any book in any member library. A daily courier makes the rounds and picks up the held books from the owning library and brings them to my library. They then send me a text saying "pick up your book."

The post office also transports books library-to-llibrary at a very favorable rate if need be.

It's a great way to measure demand for books, and buy what's needed where needed. It also allows library patrons access to a much larger collection than an individual town library could.