The link below is to an article about an Australian, Chris Browne, and his library of 12 000 books. This is a library of traditional books and he has me there. I have something like 2000. But if you were to add digital books I think I could give Chris a run for his money. In the comments below share with us (if you are willing of course) what your library is like.

For more visit:
https://www.theage.com.au/national/victoria/a-library-of-one-s-own-meet-the-man-who-owns-12-000-books-20190613-p51xhe.html