Glad you like it, Treeseed. The Codex was the start of my collection of bizarre and (or) beautiful books, but I've never found anything to top it. Two other wonderful books are In Flagrante Collecto and Why Paint Cats.
WOW! Mollusque, I do believe that is the single coolest thing I have come across in a very long time. I am planning to try very hard to see a copy of it as I can't afford to order a copy of it in any language. Thank you for telling about this. (Hugs)
The book that made me a collector of books, as opposed to someone who amasses books to read or for reference, is Codex Seraphinianus. Written in an unknown language, it illustrates an unknown civilization.
I guess that's why I'm not a librarian, although I've often considered dropping math, science, and computers for librarianism. I can't think of that first book that made me love to read. I've been reading extensively since I was maybe 8 years old, and while there are books I read back then that I still enjoy to reread, I can't think of a Book of Gold.
A Book of Gold is the one book, the first book that made you a librarian. A librarian is someone who has a collection of books, however small, that they protect and keep for the love of books. My Book of Gold is The Secret Garden by Frances Hodgson Burnett.