[xkeysc0re]

I mean, don't most - if not all - libraries consist of collections of unread books? No one assumes the head librarian has read everything on the shelves. An antilibrary seems exactly the same as a library to the point of absurdity. Did Pierre Menard come up with this?

[sparky_z]

This is talking about private libraries, which is just a fancy way of referring to one's personal book collection. If you have a "head librarian", then it's not a private library (unless you're obscenely rich).