Scott Bolinger

<p>GTINs (Global Trade Item Numbers) including UPC, EAN, and ISBN are globally recognized unique identifiers for products.</p>
<p>They are required to list your product on Google and Amazon, this plugin allows you to add your GTIN and display it on your product page.</p>
<p>Supports:</p>
<ul>
<li>Simple products</li>
<li>Variable products</li>
<li>Composite products</li>
<li>Product bundles</li>
</ul>
<p>Features:</p>
<ul>
<li>Add GTIN for main product</li>
<li>Add unique GTINs for product variations</li>
<li>Option to display GTIN on the single product page</li>
<li>Change GTIN to any other text</li>
<li>Add GTIN to structured product data</li>
<li>Works with product feeds like Google Shopping and more (requires a feed plugin)</li>
</ul>


WooCommerce UPC, EAN, and ISBN

Awesome plugin with great code

Add GTIN codes like UPC, EAN, and ISBN to your WooCommerce products.

Rafa Poveda

Pixelated Heart

<p>The wp-isbn plugin allows you to use a ISBN shortcode with an ISBN number, like <code>[isbn 9788467908787]</code>, and it will show a thumbnail and title of the book, with a link to Amazon.</p>
<p>The plugin uses [ISBN Search]http://www.isbnsearch.org/isbn/ to look for titles and show them. It shows the Amazon page of the title when clicked.<br />
ISBN Search works better with ISBN-13 codes (you can get them in the barcode of your book).</p>
<p>The structure of the shortcode allows you to style it, with classes:</p>
<ul>
<li><code>isbn-block</code></li>
<li><code>isbn-image</code></li>
<li><code>isbn-title</code></li>
</ul>
<h3>Roadmap</h3>
<h4>1.0</h4>
<ul>
<li>Users can choose the ISBN engine</li>
<li>Users can change CSS classes</li>
<li>Users can select if the thumbnail and title is linked or not</li>
<li>Users can add more fields to the info, not only the title</li>
<li>Users can choose the external link</li>
</ul>


WP ISBN

wp-isbn plugin allows you use ISBN shortcode and maintain a personal library in your WordPress..

WooCommerce UPC, EAN, and ISBN vs WP ISBN