<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/onix/cvr9781934506004/hero-squared-vol-1-9781934506004_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/Hero-Squared-Vol-1/Keith-Giffen/Hero-Squared/9781934506004>