Bright idea

The Periscope LED Book Light in a Bookcover allows providers to read manuals, books and other documents in dimly lit areas. Simply slip your book (or document)  into the cover and pull up the telescoping light, which automatically turns it on. The light is powered by three AA batteries that deliver over 40 hours of continuous light, according to the manufacturer. The product is available at Barnes & Noble bookstores.

http://www.barnesandnoble.com/