Why this author turned his novel into a pickle recipe app

Eli Horowitz is a novelist, and the former managing editor and publisher of McSweeney's. He's thought a lot about storytelling in a digital era. So when he published his new novel, The Pickle Index, he decided the ebook should be radically different from the paper version. And it is: it's an app that takes the form of a recipe sharing app, and it just might point the way to the future of digital books.