Barnes & Noble isn't making changes to the other Nook readers in its lineup, including the light-free but otherwise similar $99 E-Ink-based Nook Simple Touch reader. This latest Nook costs $139 and will become available in early May, though Barnes & Noble has started taking preorders on its website and in stores.

The homegrown GlowLight technology that Barnes & Noble has been working on for more than a year changes that. But up to now, such screens were rendered useless without a light, same as a physical book. And unlike the Apple iPad and other tablets, they are easy to make out in the bright outdoors. says Nook Simple Touch with GlowLight, as the new reader is called, is 'the most versatile e-reader that's ever been created.'Į Ink screens like the one on the Nook, as well as those on Amazon's rival Kindle devices, do a terrific job of replicating the experience of reading on real paper.

And because you can read with it on a sunny beach as well as in a dark bedroom, Barnes & Noble CEO William Lynch Jr. In New York City on Wednesday, the venerable bookseller unveiled a brand-new Nook electronic reader that it says becomes the first and only E-Ink-based device that lets you read in the dark, without having to clip on or supply an external reading light.

— - Barnes & Noble is hoping readers will see the light.

How to use a kindle nook