Barnes and Noble is the largest bookseller in the United States, and they sell their own e-readers and tablets. They are running a rare promotion to save 20% off a NOOK device until November 1st, 2025. You can save on the NOOK Tablet in all colors, the NOOK Glowlight 4 Plus, and the NOOK Glowlight 4. This offer cannot be combined with the Barnes & Noble Premium Membership discount. The promotional code is also valid for the NOOK Glowlight 4 in Ocean Teal, which was announced a couple of days ago and is scheduled to ship in late November.