1- Finding good books is always interesting... I remember how I was excited in the Potema's quests of Solitude, because I have read all the Wolf Queen series in-game. Finding an book about an dungeon that you actually know, or about someone who you have met is even more interesting. Actually, Skill Books annoy me, when they are guides and tips I can even understand, but common lore giving skills is odd. Once I leveled twice because I won a lot of skills from reading books, and I wasn't even focusing in those skills. 2- A few would survive thousand of years, but I think most would have become dust already. Maybe you should do transcribed first era books (Then they could possibly survive the time,and still, do the lore of the first era) ... or something like that