I love the new movement for book trailers. I have one myself but their are lots in production by the big publishing houses. The place to see them is on YouTube, of course. Most take themselves seriously but a few are more irreverent. A bit like TV ads. Why is it only beer commercials can be funny?
Here's a fun one by Quirk Publishing. If you're the ghost of Jane Austen - avert your eyes. HERE.
Mine is HERE.