Books and speeches make your learning faster and can give you lot of ideas. But action has to be taken by you and an audio book cannot force you to take any action.
I have been a voracious reader and have a list of around 160 books read during past 5 years. Half of them are audio books heard during my road, air & rail trips irrespective of the duration of the journey and during jogging. The remaining are hard copies or EBooks. Even if you are not a great reader, audio books are great way to instill interest in books. So start with small audio books of your interest. I will post my list of books sometime later.