Well, in the world of scholarship, history, religious studies, etc (all of which can be said to be part of TES Lore), you will often get different creation myths, God(s), and histories.
Is there a certain amount of disagreement between in-game texts in TES games which reflects, say, history/religion from an Imperial perspective, vs Dunmar accounts of history/religion, vs Nords vs Bretons, vs Redguards, etc? Also, sometimes even within a particular cultural context, you will have different 'schools of thought' favored by different scholars which are in disagreement. Do you get that type of thing going on with the texts?
I haven't yet spent much time reading the in-game texts, but I've been collecting books with an eye towards reading them "when I get around to it" (I did read some texts that seemed like they might have particularly important clues, hints, or background information, and to get some sense of the 'history' of the world, names of places, races, etc, but need to do more).
Edit: I should mention that, I'm already aware that Mancor Camoran has his own personal view of 'history' and 'religion', but outside of that, do you run across this in the games?