Why do I love buying books but hate buying an electronic books? I’m sure it involves some outdated romance with the object of a book itself and the prospect of assembling a library. An audio book is just code—you don’t find a forgotten concert ticket between the pages when you open it. Regardless, I’ve been very enthralled with the Libby app, which allows you to check out audio books from your local library for free. It’s a delight.