A Nook is an e-reader that Barnes & Noble created, which can also be used as a tablet PC. The Nook includes direct access to the Barnes & Noble website, management software for organizing stored e-books, and a desktop application through which users can browse the Internet, check their e-mail, and run third party applications.

A Nook is an e-reader/tablet PC that Barnes & Noble produced. It can be used to read e-books from both Barnes & Noble and third party sources, browse the Internet, and even run third party applications. There are several different types of Nooks available that mimic other e-readers such as the Kindle, Sony Reader, and BeBook.

A nook is an e-reader that Barnes & Noble produced, which is similar to the Kindle and Sony Reader. The Nook is available in several different models that range in size and color, some of which include touch screen support.