It's no secret that e-readers changed the game for bookworms forever. We're no longer tied to shelves of physical paper. However, now that we're over a decade removed from the first-ever e-reading tablet, manufacturers are honing these devices with incremental improvements. Small details edge a product ahead of the competition, which is precisely what Barnes & Noble's Nook GlowLight 4 Plus (a longtime tooth-and-nail contender against Amazon's Kindle) brings to the table this year.
