I got my first tattoo based off the library. The Hexagon is my interpretation of how the hexs of the library look. The numbers under represent the hex down to the number of characters on each page.
I: The one Hexagon room.
IV: Number of walls holding books.
V: Number of shelves on those walls.
XXXII: Number of books per shelf.
CDX: Number of pages per book.
XL: Number of lines per page.
~LXXX: Average number of characters on each line.