I didn't make it to the end.
This is one of those books that is just not meant to be listened to. I enjoyed what I read but it is more of an encyclopedia than a narration and doesn't lend it self well to the linear narration of an audio production. This is one of those books that is meant to be picked up and thumbed through and read bits at a time in no specific order. Besides which the narrator was driving me crazy. So I get the gist of it and now it is time to move on to the next book.