I’m a huge fan of audiobooks. With my subscription to Audible.com, I burn through a couple of books a month. For longer reads, I sometimes buy the Kindle edition so I can read in bed and then have the Audible app pick it up when I’m in the car or walking the dog.
I’ve recorded some audiobooks myself (here’s an example from iTunes), and I can tell you that they can be a slog for the person doing the reading.
Vox takes a look at how these things are put together.