Most people relate trailers to advertising for an upcoming movie.  However, books have been using this concept too for promoting an upcoming release of a print book.  Go to youtube.com, and search for print book trailers or reviews - I used "book video trailers" on Youtube.  Choose one of the books that you find - share the link to the video on the discussion thread.

Give your personal analysis of whether you think this video worked for this particular book - did the video get you to consider purchasing the book?