Over the last few years audio books have become a lot more poplar and the demand continues to increase year by year. Years ago the only way you could buy an audio book was to buy a physical product either a cassette or cd. However due to the advances in technology it is possible to download audio books directly from the internet. You then have a choice as to how you listen to them. You can either simply leave it on your computer and listen from there or you can burn it to a cd and play it at home or on you car cd player or you can transfer it to a portable music player such as an ipod and listen to it anywhere.