Audio has been around since, I suppose, the spoken language. The difference now is distribution and availability. Audiobooks, podcasts, smart phones, voice controlled home speaker systems, connected cars, and who knows what will come next.
Bradley Charbonneau is an “unstoppable writing machine.”
I love listening to audiobooks - I always lose my glasses, but if I have an audiobook, I don't need them.? -- Michaela Coel?
For Pepper