The Raven Boys book trailer

Once again I'm incredibly impressed by Maggie Stiefvater's talent and skill when it comes to making her own book trailers. I mean, holy crap, just watch this thing, just listen to it:


Gorgeous, yes? Did I get anyone's curiosity piqued? If so, you'll be happy to know that sharing this trailer with your peeps may lead to an ARC of The Raven Boys. Either way, tell me all your thoughts. Is this an effective book trailer? And what about book trailers in general? Legitimate sales technique or waste of time? Let me know in the comments!