Listening to a book club selection is not cheating. It’s not even cheating to listen while you’re at your child’s soccer game (at least not as far as the book is concerned). You’ll just get different things out of the experience. And different books invite different ways that you want to read them: As the audio format grows more popular, authors are writing more works specifically meant to be heard.
Daniel Willingham discusses the differences between reading and listening to texts. He touches on the affordances of each arguing that they are best suited to different purposes, and neither is superior.