@Tomas28:
Comparatively venerable and fleshed-out though Warcraft's lore may be, there's still not
nearly that much of it. That library looked to have many hundreds of books. The entire gamut of Warcraft lore would only fill a single set of bookshelves at most.
Even the most sprawling megalodons of commercial sci-fi/fantasy writing would have trouble filling a library by themselves (Unless we were to allow fan-fiction as part of the corpus—but that's not relevant here). Some things like
Star Trek come close. Marvel/DC stuff might work if you count their respective multiverses as one franchise, though that's kind of cheating. Warcraft doesn't even come close.
Warcraft lore was developed over time (before WoW really, Warcraft was already a decade old when WoW came out, slowly picking up lore along the way), but even then most of the actual text is probably in the novels (of which there are only a few dozen, which is a hell of a lot for a game series, but very little for a library) released over the years. Then there's the text in the games, plus whatever scattered bits of writing outside these more obvious media (which by now put together is probably fairly voluminous).
But, to my original point, preparing even
that much just to put in a fresh-spanking game world so people can... have stuff to read in the library? Let alone the multiple-library's worth we see in this game? Who's paying the authors?
I mean, it would be plausible if those books are actually only a few page/paragraphs each despite their appearances (like modern in-game "books") but that didn't seem to be how it was presented?
Sorry if I'm answering a tongue-in-cheek response too literally. I thought yours was an interesting comment in that it makes it sound almost-plausible, until you look at the numbers, and realize just how damn much knowledge (or, at least, writing) is contained in a single bookshelf.
Also, consider, for fun: My parent's old copy of the Encyclopedia Britannica, which were supposed to basically be lore books for Earth, in all of its complexity (whether or not they even remotely lived up to that goal), only take up two shelves. Or, Wikipedia, which is something like 30 shelves of books (depending on how you print it, how large the shelves are, etc), could fill a... small-to-medium sized library? Maybe even larger than the one depicted here. But that's all of effin' Wikipedia. My point is, the amount of text in a given library is staggering.)