Librarians are Mothers. Books are children. Librarians love their books. They take care of them. Literary critics will say a book is bad or good, but that doesn't matter to a librarian.
All books are equal in the sight of a librarian.
A book of this kind is often loved even more. Its dust jacket is repaired more often, it spends time in the office more than the other books, it spends less time on the shelf where strangers might damage it. This book is prized. It is so prized it may never leave the library. Some books may be about different things.