'The Pig Children' is a book about wanting to kill all the orcs. It was probably written by a Nord.
More likely a Breton or Redguard. When they weren't fighting themselves or each other, they were teaming up to kill the Orcs. That book first appeared in Morrowind, the first game where the Orsimer were playable.
'The Heart of Cherim' is pretty good in that regard... after the initial thrill of the light armour skill increase, you can't help but be saddened by the wanton squandering of life in the tale... the bit about treating battlefield arrow trauma is particularly sobering. Pretty much the 'All Quiet on the Western Front' of Skyrim.
The four books about the guy who enticed women to his lair so he could kill them, raise them as draugr, and commit necrophilia with them.
Agreed... but at least you can get to the end of that cave and kill the filthy bastard... having done that, I went to bed and slept like a baby. Quite cathartic.
Okay, i wiki cheated a little (after 500 hours) to get the ones i missed
The Charwich-Koniinge Letters (3 books); the story of two evildoers who double cross each other in their quest for a daedric artifact. The ending has a nice twist.