I absorb comics and graphic novels. Some of my favourites:
Bone (probably my favourite of all time ever)
Maus (gritty, about the holocaust)
Sin City, 300, basically anything by Frank Miller.
Sandman
Transmetropolitan (think Hunter S. Thompson in the year 3000)
Watchmen
Persepolis
Habibi (this one is gritty, but excellent)
Pyongyang: A Journey in North Korea
Ghost World
If you're into manga at all, there's a ton I like there too.