Leandro Berg

This plugin can be used for staging version website for example. Sometimes, developers have to make a staging version just to perform some updates and don’t want to transfer all media content from the “wp-content/uploads” folder. With Sample Images plugin, there’s no necessity for that. Just activate it and all required images in your theme, will receive a sample image without any changes on your db or theme codes.

Sample Images

Runtime media path replacement, used for generate sample images on front side, without any db changes

Kemory Grubb

Book Previewer enables you to use a shortcode to retrieve and display Google Books previews of titles you specify. To use the shortcode, you must have an International Standard Book Number (ISBN), Online Computer Library Center (OCLC) ID, Library of Congress Control Number (LCCN), or Google Play Generated Key (GGKEY) for the title you want to display. Additionally, a Google Books preview of that title must exist.
Features:
<ul>
<li>Uses a shortcode and the Google Books Embedded Viewer API to display a free preview for a book you specify</li>
<li>Includes a “Book Preview” widget that can be used in place of the shortcode</li>
<li>Includes a text editor button that enables you to insert the majority of the shortcode without typing</li>
<li>Supports WordPress localization (i18n)</li>
<li>Supports displaying the preview as an embedded page element, a popup, or a direct link to the title on the Google Books site</li>
<li>Supports site performance protection mechanisms, including caching of elements and an option to defer loading until the page footer</li>
</ul>

Book Previewer

Retrieve and display Google Books previews for an ISBN, OCLC, LCCN, or GGKEY you specify on any WordPress page or post.

Sample Images vs Book Previewer