book.js

<script type="application/ld+json">
{
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      "@type": "WebPage",
      "breadcrumb": "Books > Marketing > JSON",
      "mainEntity":{
              "@type": "Book",
              "author": "http://www.example.com/author.html",
              "bookFormat": "http://schema.org/EBook",
              "datePublished": "2015-05-01",
              "image": "coverImage.jpg",
              "inLanguage": "English",
              "isbn": "00000000",
              "name": "The Title of Book",
              "numberOfPages": "1234",
              "offers": {
                "@type": "Offer",
                "availability": "http://schema.org/InStock",
                "price": "9.99",
                "priceCurrency": "USD"
              },
              "publisher": "O'Json Publishing",
              "aggregateRating": {
                "@type": "AggregateRating",
                "ratingValue": "4",
                "reviewCount": "12"
              }
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