I have a Kindle. I got it because I'd already started a kindle acct. for my laptop. I got the smaller one (it'll fit in my purse). The books I had on my computer automatically transferred to my kindle. After I got mine, I saw there were cases that had a built in book light. My little case doesn't. At night while dh is watching tv, I use a clip-on book light. Mine will hold a charge for about 3 days, and I read a lot. I've never used or looked at a nook, but my friend loves hers.