> one need only remember that Life of Brian (the Monty Python movie) is banned in the Vatican.

I can find no confirmation of this, or of any ban since 1966 (and that is assuming that the index of forbidden books had legal force in the Vatican).

> But if the criteria of being in the library - that the book be banned somewhere in the world; that's a reason to visit the library in of itself.

Is it worth a visit to a physical location? A lot of those books are ones I could see on a list and order online. Its not really that interesting if a book as been banned somewhere very authoritarian, nor am I that interested if schools in one area somewhere were not allowed to have a book in their libraries. On the other hand reading down this list is very illuminating, and often astonishing:

https://en.wikipedia.org/wiki/List_of_books_banned_by_govern... I am still scrolling down it, but Austria, Australia and China are all fascinating.