Audible is a service provided by Amazon, which gives you access to a ton of audio books that you can listen to in the car, at the gym, or really anywhere. It's a very popular service, but many aren't willing to sign up for it, and that's because plans start at $15/month. Not exactly the cheapest service out there, but definitely not the most expensive. There are over 180,000 audio books available on Audible right now, so you'll definitely find the right book for you.
While Amazon does offer a free 30-day trial of Audible to everyone, and then it's $14.95/month thereafter. The Android Headlines Store is offering up a 60-day membership completely free for those that want to try it. Meaning you'll get two credits for audio books to listen to during the trial period. Giving you ample amount of time to actually check out the service before it starts charging you that $14.95/month. It's a fantastic service, which is why it has become so popular, with apps available for just about every platform. Heck, it's even available for Android Auto, allowing you to listen in the car. This 60-day membership offer won't last forever, in fact it ends on October 4th, so you'd better act now before it's over.