I've not read much of his work but Blood Meridian was nothing quite like anything else I've read. I owned my copy for years and tried multiple times to get into it. The 4th time it finally stuck and managed to get through the entire thing. It was certainly an experience, I'm still not even sure I really enjoyed it. Though, its definitely stuck with me and one day I'll read it again.
Safe to say that Cormac left a massive impact on writing and was doing something entirely his own. I'll have to read more of his work now
What good history non fiction have you read recently? I'm always in the market for more