Illustration is one of those practices where you spend big blocks of time with your eyes fixed to a sketchbook, canvas or computer screen. This leaves your ears wide open with nothing to do, so why not fill them with knowledge. I've always listened to music or had the TV on in the background while I illustrate but I've recently taken to listening to podcasts, audiobooks and sermons instead. Like many illustrators, I like to be efficient with my time and work process, so it just made sense to learn something audibly while I was drawing and colouring.
With an overwhelming amount of podcasts online, it's hard to know where to start. The best advice I can give is to find out what you're passionate about and see if there are any podcasts or audiobooks out there that can feed that passion. Try and pick a few different topics that interest you to keep your ears from getting bored. With enough searching you're bound to find something you like and when you do, you'll be hooked!
These are some podcasts I draw inspiration from: