I’m reading a book called, Hello World. It’s about the history of design, and how to design well. Good design makes a product desirable, useful, and valuable. Audio books have elements of good design. They help us use our time meaningfully because we can listen to them while we commute or wait. They are easy to transport because we can ship them over the Internet. And their production costs are low, since copying and distributing digital audio files is essentially free. So help save the world, one audio book at a time.