<http://schema.org/thumbnailURL>
"http://d28hgpri8am2if.cloudfront.net/book_images/cvr9781439113820_9781439113820_th.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/Mission-Spy-Force-Revealed/Deborah-Abela/Spy-Force/9781439113820>