I have both the Nook and the Kindle. I like the Kindle better. Why? Several reasons, it is smaller. I have it in my purse all the time and can pull it out any time. It is light and doesn't weigh down my purse a lot. Finally, library books do not expire from it the way they do off of the Nook. Yes, you heard me correctly. The Nook has a 'time bomb' that makes the book expire at the end of the 2 week library loan period. With the Kindle, if you do not turn on your wireless, the book stays on your Kindle and is available to read indefinitely. Shhhhh! Don't tell.