One advantage of the fact that we've all become audio book addicted in this house is that we don't have to worry about mispronouncing words as we hear them pronounced correctly when we are learning them. I remember when I was a kid, I read the word misled as something like mice-uhled. until my 8th grade class was reading aloud and I realized it was pronounced miss-led. Oh, yes. That makes much more sense. A disadvantage to my kids is that they might not immediately recognize the word in print. I have been looking for vocabulary lists based on the books we like, but so far, haven't really found any. I will keep looking though. Another advantage to audio books is that, when you listen to a book while driving or working, it makes the time pass so much faster and it is easier to share books as a family.