Are Book Trailers Helpful?

You've written a great book now you have to sell it. How do a author stand out from a crowd of 600,000 plus? Yes, there is over 600,000 books published every year in the United States alone. Some are well known authors, some are backed up by well known publishers and some are just self-published by independent companies. Of course, the independent authors and publishers have to work a lot harder, simply because their following isnt as big as the other guys. That's why I fell completely in love with the idea of a book trailer. A visual for a book makes me anxious to read the pages to the novel. How about you readers, do you think book trailers are helpful? Below is the Book trailer to Sleeping in Sin. Tell me if it helps with your decisions to buy the book.