As the son of another librarian I can also confirm this is true, and point out that just today I overheard a children's librarian lamenting that her library jus

As the son of another librarian I can also confirm this is true, and point out that just today I overheard a children's librarian lamenting that her library just discarded all their Lloyd Alexander. "They just didn't circulate," she said with evident sorrow. So don't just use the library, use the specific bits of it that you want to keep. You are doing nobody any favors by letting it sit idle.