re: If you listened to the audio version of a book do you say you read the book?

In an academic context, no. In a social context, I don't think the distinction is important. And I say that as someone who has never listened to an audio book in my life.

Now, with one caveat: if you "listened" while doing other things, then no, I wouldn't really consider that person as having done any more than the equivalent of skimming the book.