"Unlike the entirety of the Library, incomprehensible due to its sheer vastness, the book itself was much smaller. Any single one could easily be read hundreds of times over during the lifespan of a librarian. Therefore, the book’s gibberish nature did not come of its own accord but simply sprouted out of its relation to us and our lack of knowledge concerning the Library as a whole. In other words, for any book to make any sense to any librarian, it must have recognizable patterns, like those in language. And since every possible book that could exist did, most of them were simply random, nonsensical strings of characters. Leaving the librarians themselves to search for the language or sets of languages that could bring meaning to them (them:themselves or them:the books no one was sure). This was reflected — maybe the same sort of reflection Tanner was searching for — in the various languages the librarians did know and use; the ever-evolving nature of them, incorporating and condensing larger and larger swaths of ideas that then needed to be condensed even further into shorter acronyms for quicker reference."
https://medium.com/@odell.brenden/a-return-to-the-library-of...