At some point in Lionel Shriver's The Post-Birthday World, Irina, the main character who is a children's book illustrator, comes up with an idea -- one that mirrors the book's narrative: the young hero of her next book will live two different lives and both lives will have fulfilling outcomes. And to translate the concept physically, Irina imagines a book that the young reader will simply flip upside down at the end of the first story, to start reading the second one, again, from the beginning.

Imaginative and so visual! something that e-books simply put, can't do....