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mainEntity

Thing > Property > about > mainEntity

Indicates the primary entity described in some page or other CreativeWork.

Inverse-property: mainEntityOfPage.

Values expected to be one of these types
Thing
Used on these types
CreativeWork
Super-properties
about
Examples

Example 1
Without Markup Microdata RDFa JSON-LD 
<a href="category/books.html">Books</a> >
 <a href="category/books-literature.html">Literature & Fiction</a> >
 <a href="category/books-classics">Classics</a>
<img src="catcher-in-the-rye-book-cover.jpg"
  alt="cover art: red horse, city in background"/>
The Catcher in the Rye - Mass Market Paperback
by <a href="/author/jd_salinger.html">J.D. Salinger</a>
4 stars - 3077 reviews
Price: $6.99
In Stock
Product details
224 pages
Publisher: Little, Brown, and Company - May 1, 1991
Language: English
ISBN-10: 0316769487
Reviews:
5 stars - <b>"A masterpiece of literature" </b>
by John Doe. Written on May 4, 2006
I really enjoyed this book. It captures the essential challenge people face
as they try make sense of their lives and grow to adulthood.
4 stars - <b>"love it LOLOL111!" </b>
by Bob Smith, Written on June 15, 2006
Catcher in the Rye is a fun book. It's a good book to read.

<body itemscope itemtype="http://schema.org/WebPage">
...
<div itemprop="breadcrumb">
  <a href="category/books.html">Books</a> >
  <a href="category/books-literature.html">Literature & Fiction</a> >
  <a href="category/books-classics">Classics</a>
</div>
<div itemprop="mainEntity" itemscope itemtype="http://schema.org/Book">
<img itemprop="image" src="catcher-in-the-rye-book-cover.jpg"
     alt="cover art: red horse, city in background"/>
<span itemprop="name">The Catcher in the Rye</span> -
 <link itemprop="bookFormat" href="http://schema.org/Paperback">Mass Market Paperback
by <a itemprop="author" href="/author/jd_salinger.html">J.D. Salinger</a>
<div itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating">
  <span itemprop="ratingValue">4</span> stars -
  <span itemprop="reviewCount">3077</span> reviews
</div>
<div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
  Price: $<span itemprop="price">6.99</span>
  <meta itemprop="priceCurrency" content="USD" />
  <link itemprop="availability" href="http://schema.org/InStock">In Stock
</div>
Product details
<span itemprop="numberOfPages">224</span> pages
Publisher: <span itemprop="publisher">Little, Brown, and Company</span> -
 <meta itemprop="datePublished" content="1991-05-01">May 1, 1991
Language: <span itemprop="inLanguage">English</span>
ISBN-10: <span itemprop="isbn">0316769487</span>
Reviews:
<div itemprop="review" itemscope itemtype="http://schema.org/Review">
  <span itemprop="reviewRating">5</span> stars -
  <b>"<span itemprop="name">A masterpiece of literature</span>"</b>
  by <span itemprop="author">John Doe</span>,
  Written on <meta itemprop="datePublished" content="2006-05-04">May 4, 2006
  <span itemprop="reviewBody">I really enjoyed this book. It captures the essential
  challenge people face as they try make sense of their lives and grow to adulthood.</span>
</div>
<div itemprop="review" itemscope itemtype="http://schema.org/Review">
  <span itemprop="reviewRating">4</span> stars -
  <b>"<span itemprop="name">A good read.</span>" </b>
  by <span itemprop="author">Bob Smith</span>,
  Written on <meta itemprop="datePublished" content="2006-06-15">June 15, 2006
  <span itemprop="reviewBody">Catcher in the Rye is a fun book. It's a good book to read.</span>
</div>
</div>
...
</body>

<body vocab="http://schema.org/" typeof="WebPage">
...
<div property="breadcrumb">
  <a href="category/books.html">Books</a> >
  <a href="category/books-literature.html">Literature & Fiction</a> >
  <a href="category/books-classics">Classics</a>
</div>
<div property="mainEntity" typeof="Book">
<img property="image" src="catcher-in-the-rye-book-cover.jpg"
    alt="cover art: red horse, city in background"/>
<span property="name">The Catcher in the Rye</span> -
 <link property="bookFormat" href="http://schema.org/Paperback">Mass Market Paperback
by <a property="author" href="/author/jd_salinger.html">J.D. Salinger</a>
<div property="aggregateRating" typeof="AggregateRating">
  <span property="ratingValue">4</span> stars -
  <span property="reviewCount">3077</span> reviews
</div>
<div property="offers" typeof="Offer">
  Price: $<span property="price">6.99</span>
  <meta property="priceCurrency" content="USD" />
  <link property="availability" href="http://schema.org/InStock">In Stock
</div>
Product details
<span property="numberOfPages">224</span> pages
Publisher: <span property="publisher">Little, Brown, and Company</span> -
 <meta property="datePublished" content="1991-05-01">May 1, 1991
Language: <span property="inLanguage">English</span>
ISBN-10: <span property="isbn">0316769487</span>
Reviews:
<div property="review" typeof="Review">
  <span property="reviewRating">5</span> stars -
  <b>"<span property="name">A masterpiece of literature</span>"</b>
  by <span property="author">John Doe</span>,
  Written on <meta property="datePublished" content="2006-05-04">May 4, 2006
  <span property="reviewBody">I really enjoyed this book. It captures the essential
  challenge people face as they try make sense of their lives and grow to adulthood.</span>
</div>
<div property="review" typeof="Review">
  <span property="reviewRating">4</span> stars -
  <b>"<span property="name">A good read.</span>" </b>
  by <span property="author">Bob Smith</span>,
  Written on <meta property="datePublished" content="2006-06-15">June 15, 2006
  <span property="reviewBody">Catcher in the Rye is a fun book. It's a good book to read.</span>
</div>
</div>
...
</body>

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "WebPage",
  "breadcrumb": "Books > Literature & Fiction > Classics",
  "mainEntity":{
	  "@type": "Book",
	  "author": "/author/jd_salinger.html",
	  "bookFormat": "http://schema.org/Paperback",
	  "datePublished": "1991-05-01",
	  "image": "catcher-in-the-rye-book-cover.jpg",
	  "inLanguage": "English",
	  "isbn": "0316769487",
	  "name": "The Catcher in the Rye",
	  "numberOfPages": "224",
	  "offers": {
	    "@type": "Offer",
	    "availability": "http://schema.org/InStock",
	    "price": "6.99",
	    "priceCurrency": "USD"
	  },
	  "publisher": "Little, Brown, and Company",
	  "aggregateRating": {
	    "@type": "AggregateRating",
	    "ratingValue": "4",
	    "reviewCount": "3077"
	  },
	  "review": [
	    {
	      "@type": "Review",
	      "author": "John Doe",
	      "datePublished": "2006-05-04",
	      "name": "A masterpiece of literature",
	      "reviewBody": "I really enjoyed this book. It captures the essential challenge people face as they try make sense of their lives and grow to adulthood.",
	      "reviewRating": {
            "@type": "Rating",
            "ratingValue": "5"
           }
	    },
	    {
	      "@type": "Review",
	      "author": "Bob Smith",
	      "datePublished": "2006-06-15",
	      "name": "A good read.",
	      "reviewBody": "Catcher in the Rye is a fun book. It's a good book to read.",
	      "reviewRating": "4"
	    }
	  ]
  	}
}
</script>
Example 2
Without Markup Microdata RDFa JSON-LD 
     <div>
      <h1>Cath's Cafe</h1>
      <p>Open: Daily from 11:00am till 8pm</p>
      <p>Phone: 555-0100-3344</p>
      <p>View <a href="/menu">our menu</a>.</p>
     </div>

<div itemid="http://cathscafe.example.com/" itemscope itemtype="http://schema.org/WebPage">
    <div itemprop="mainEntity" itemscope itemtype="http://schema.org/Restaurant" itemid="#thecafe">
      <h1 itemprop="name">Cath's Cafe</h1>
      <p>Open: <span itemprop="openingHours" content="Mo,Tu,We,Th,Fr,Sa,Su 11:00-20:00">Daily from 11:00am till 8pm</span></p>
      <p>Phone: <span itemprop="telephone" content="+155501003344">555-0100-3344</span></p>
      <p>View <a itemprop="hasMenu" href="/menu">our menu</a>.</p>
    </div>
</div>

TODO.

<script type="application/ld+json">
{
    "@context": "http://schema.org",
    "@type": "WebPage",
    "@id": "http://cathscafe.example.com/",
    "mainEntity": {
      "@type": "Restaurant",
      "name": "Cath's Cafe",
      "openingHours": "Mo,Tu,We,Th,Fr,Sa,Su 11:00-20:00",
      "telephone": "+155501003344",
      "hasMenu": "/menu"
    }
}
</script>