This is a great book trailer. Not all authors can afford this level of production, but I bet there are a lot of authors who could get friends together to do something similar and hire the next door teenager to jazz up the video.
Check it out:
Note: This is a book proposal. I don't believe they have a publisher yet. Check out http://www.dumped411.com for details.
This video should go viral. It hasn't yet, only 361 views, but it should. Come back in two weeks to see how well it has done.