I'm finally reading The Martian by Andy Weir, picked it up on a whim when I brought the kids to the library on Saturday and I'm almost finished it now. I've actually had it on my Kindle for a while but never got around to starting it. I'm enjoying it, looking forward to reading his other books soon.
I read mostly on my Kindle, but I prefer (and miss) reading actual books. But most of my reading is done when its dark and not always able to turn on a light.