<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/onix/cvr9780743203890/pay-it-forward-9780743203890_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/Pay-It-Forward/Catherine-Ryan-Hyde/9780743203890>