Books that incorporate a lot of surveys are tedious to do on audio. I think they might be as boring to do even when reading off a book. If they gave you the conclusions from the study directly, the book length should come to about a third. I think a summary of some sort online would serve me better than having to plod through the statistics. In any case, the conclusions over a small sample seem so improbable, I am left with the feeling that I learned nothing from the book.