Review

A review of an item - for example, a restaurant, movie, or store.

Property	Expected Type	Description
Properties from Thing
`additionalType`	URL	An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally.
`description`	Text	A short description of the item.
`image`	URL	URL of an image of the item.
`name`	Text	The name of the item.
`url`	URL	URL of the item.
Properties from CreativeWork
`about`	Thing	The subject matter of the content.
`accountablePerson`	Person	Specifies the Person that is legally accountable for the CreativeWork.
`aggregateRating`	AggregateRating	The overall rating, based on a collection of reviews or ratings, of the item.
`alternativeHeadline`	Text	A secondary title of the CreativeWork.
`associatedMedia`	MediaObject	The media objects that encode this creative work. This property is a synonym for encodings.
`audience`	Audience	The intended audience of the work, i.e. the group for whom the work was created.
`audio`	AudioObject	An embedded audio object.
`author`	Organization or Person	The author of this content. Please note that author is special in that HTML 5 provides a special mechanism for indicating authorship via the rel tag. That is equivalent to this and may be used interchangeably.
`award`	Text	An award won by this person or for this creative work.
`awards`	Text	Awards won by this person or for this creative work. (legacy spelling; see singular form, award)
`comment`	UserComments	Comments, typically from users, on this CreativeWork.
`contentLocation`	Place	The location of the content.
`contentRating`	Text	Official rating of a piece of content—for example,'MPAA PG-13'.
`contributor`	Organization or Person	A secondary contributor to the CreativeWork.
`copyrightHolder`	Organization or Person	The party holding the legal copyright to the CreativeWork.
`copyrightYear`	Number	The year during which the claimed copyright for the CreativeWork was first asserted.
`creator`	Organization or Person	The creator/author of this CreativeWork or UserComments. This is the same as the Author property for CreativeWork.
`dateCreated`	Date	The date on which the CreativeWork was created.
`dateModified`	Date	The date on which the CreativeWork was most recently modified.
`datePublished`	Date	Date of first broadcast/publication.
`discussionUrl`	URL	A link to the page containing the comments of the CreativeWork.
`editor`	Person	Specifies the Person who edited the CreativeWork.
`encoding`	MediaObject	A media object that encode this CreativeWork.
`encodings`	MediaObject	The media objects that encode this creative work (legacy spelling; see singular form, encoding).
`genre`	Text	Genre of the creative work
`headline`	Text	Headline of the article
`inLanguage`	Text	The language of the content. please use one of the language codes from the IETF BCP 47 standard.
`interactionCount`	Text	A count of a specific user interactions with this item—for example, `20 UserLikes`, `5 UserComments`, or `300 UserDownloads`. The user interaction type should be one of the sub types of UserInteraction.
`isFamilyFriendly`	Boolean	Indicates whether this content is family friendly.
`keywords`	Text	The keywords/tags used to describe this content.
`mentions`	Thing	Indicates that the CreativeWork contains a reference to, but is not necessarily about a concept.
`offers`	Offer	An offer to sell this item—for example, an offer to sell a product, the DVD of a movie, or tickets to an event.
`provider`	Organization or Person	Specifies the Person or Organization that distributed the CreativeWork.
`publisher`	Organization	The publisher of the creative work.
`publishingPrinciples`	URL	Link to page describing the editorial principles of the organization primarily responsible for the creation of the CreativeWork.
`review`	Review	A review of the item.
`reviews`	Review	Review of the item (legacy spelling; see singular form, review).
`sourceOrganization`	Organization	The Organization on whose behalf the creator was working.
`text`	Text	The textual content of this CreativeWork.
`thumbnailUrl`	URL	A thumbnail image relevant to the Thing.
`version`	Number	The version of the CreativeWork embodied by a specified resource.
`video`	VideoObject	An embedded video object.
Properties from Review
`itemReviewed`	Thing	The item that is being reviewed/rated.
`reviewBody`	Text	The actual body of the review
`reviewRating`	Rating	The rating given in this review. Note that reviews can themselves be rated. The `reviewRating` applies to rating given by the review. The `aggregateRating` property applies to the review itself, as a creative work.

Schema Draft Version 0.99

Example 1

Original HTML:

Kenmore White 17" Microwave
<img src="kenmore-microwave-17in.jpg" alt='Kenmore 17" Microwave' />
Rated 3.5/5 based on 11 customer reviews

$55.00
In stock

Product description:
0.7 cubic feet countertop microwave. Has six preset cooking categories and
 convenience features like Add-A-Minute and Child Lock.

Customer reviews:

Not a happy camper - by Ellie, April 1, 2011
1/5 stars
The lamp burned out and now I have to replace it.

 Value purchase - by Lucas, March 25, 2011
4/5 stars
Great microwave for the price. It is small and fits in my apartment.
...

With Microdata:

<div itemscope itemtype="http://schema.org/Product">
  <span itemprop="name">Kenmore White 17" Microwave</span>
  <img src="kenmore-microwave-17in.jpg" alt='Kenmore 17" Microwave' />
  <div itemprop="aggregateRating"
    itemscope itemtype="http://schema.org/AggregateRating">
   Rated <span itemprop="ratingValue">3.5</span>/5
   based on <span itemprop="reviewCount">11</span> customer reviews
  </div>

  <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
    <span itemprop="price">$55.00</span>
    <link itemprop="availability" href="http://schema.org/InStock" />In stock
  </div>

  Product description:
  <span itemprop="description">0.7 cubic feet countertop microwave.
  Has six preset cooking categories and convenience features like
  Add-A-Minute and Child Lock.</span>

  Customer reviews:

  <div itemprop="review" itemscope itemtype="http://schema.org/Review">
    <span itemprop="name">Not a happy camper</span> -
    by <span itemprop="author">Ellie</span>,
    <meta itemprop="datePublished" content="2011-04-01">April 1, 2011
    <div itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
      <meta itemprop="worstRating" content = "1">
      <span itemprop="ratingValue">1</span>/
      <span itemprop="bestRating">5</span>stars
    </div>
    <span itemprop="description">The lamp burned out and now I have to replace
    it. </span>
  </div>

  <div itemprop="review" itemscope itemtype="http://schema.org/Review">
    <span itemprop="name">Value purchase</span> -
    by <span itemprop="author">Lucas</span>,
    <meta itemprop="datePublished" content="2011-03-25">March 25, 2011
    <div itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
      <meta itemprop="worstRating" content = "1"/>
      <span itemprop="ratingValue">4</span>/
      <span itemprop="bestRating">5</span>stars
    </div>
    <span itemprop="description">Great microwave for the price. It is small and
    fits in my apartment.</span>
  </div>
  ...
</div>

Example 2

Original HTML:

<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" />
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.

With Microdata:

<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 itemscope itemtype="http://schema.org/Book">

<img itemprop="image" src="catcher-in-the-rye-book-cover.jpg" />
<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>