Are kids' book apps really books?

There's a whole new way to read your kids to sleep these days — or to distract them while you are trying to get something done. If you have a smartphone or an iPad, you can download a kids' book app in no time. From classics to stories created specifically as an app, these enhanced e-books include narration, animation and interactive features. Some children are even getting their first exposure to books on a digital device. However, there are some detractors who say this new breed of children's "books" are not really books at all. "It's not a book for a number of reasons," says Philip Nel, a professor of English and director of the children's literature program at Kansas State University. Learn why in this story by Lynn Neary at NPR.org.