Supervolcano: Things Fall Apart is Harry Turtledove’s final book (I think) in the series about what would happen if the Yellowstone caldera exploded the way that it’s apparently supposed to do any time now (spoiler warning: life would really, really, really suck). I’m reading it, as I do all things Turtledove, and I’m enjoying it… but the blurbs for the book (which suggest a looming DOOM) don’t really match the text (which suggests that life is simply going to really, really, really suck for a while). I’m not saying don’t check it out; Harry Turtledove can’t control the people who write ad copy for his books. But apocalypse porn* this is not.
*Not that there’s anything wrong with that, of course.