The IdeaCentre Q190, the world's smallest1 full-function desktop PC at just 22mm (0.86 inches) wide, packs multimedia features that can turn any display in your home into an entertainment hub for videos, games, web browsing and more.

ENGADGET: Lenovo intros IdeaCentre Q190 HTPC, new C-series all-in-ones for the space-saving set

Ms. Buchanan, co-author of the bestseller "The Daring Book for Girls, " says she set out to create a multimedia story that took advantage of the protean nature of the latest e-readers, which can function as a book one moment and a photo album or movie player the next.

WSJ: Enhanced E-Books: Blowing Up the Book