Barnes and Noble's Free Fridays program is a promotion on The Nook blog where a book can be downloaded to the Nook for free, as of February 2015. The books are only free for that Friday.
Barnes and Noble's website also has a free Nook books section. A user can sort through the books by category or popularity. The Nook blog includes a listing of the top Nook books and a section with special offers related to the Nook, such as instant rebates, sales, and Barnes and Noble gift cards that accompany the purchase of a Nook.
The Nook is an e-reader brand, with the first model released in 2009. Prices and storage capacities vary based on the model. The Nook store has a myriad of applications available, including games, news, wallpapers and lifestyle. Many applications have to be purchased, but some are available free of charge. Barnes and Noble also offers e-reader applications for other devices, such as computers and smart phones, which allow Nook books to be read on that device.
Features that are available on certain Nook models include built-in LED lights referred to as Glow Light, various color schemes and a micro-SD card slot to increase storage capacity. Certain models have HD screens, while others are capable of playing videos.