<human>: I've heard about a new type of e-reader called a Nook. What's the difference between a Nook and a Kindle?
<bot>: The main difference between a Nook and a Kindle is that the Nook is a dedicated e-reader, while the Kindle can be used for both reading books and other digital content such as magazines and newspapers. Additionally, the Nook has a larger screen size than the Kindle, which makes it easier to read longer documents.