Ginchen

Easily configurable book display with sidebar widget and shortcode. Book information is read from Amazon Web Services (AWS) and gets cached in database.
Key features:
<ul>
<li>Search for your current read book by title and / or author (new)</li>
<li>Search for your current read book by ISBN</li>
<li>Easy setup of fonts and colors with live preview (new)</li>
<li>Ready for <a href="http://www.code-styling.de/english/development/wordpress-plugin-codestyling-localization-en" rel="nofollow ugc">Codestyling Localization</a> plugin</li>
</ul>
Requirements
<ul>
<li>PHP version >= 5.1.2</li>
<li>free <a href="https://aws-portal.amazon.com/gp/aws/developer/registration/index.html" rel="nofollow ugc">AWS Account</a></li>
</ul>

I am reading (continued)

This is a re-upload of the (again) abandoned plugin "I am reading". Book display with search by ISBN, title and author for all Amazon market …

cmeeren

This is a “set it and forget it” widget which allows you to display shelves and reading progress from your Goodreads profile. You can add multiple widgets and configure them individually to show multiple shelves.
Some configuration options:
<ul>
<li>Large/small cover images</li>
<li>Message to display if shelf is empty</li>
<li>Sort books by reading progress, date updated, shelf position, author, title, etc.</li>
<li>Number of books to display</li>
<li>Display your rating</li>
<li>Show first line of your Goodreads review (intended for quick notes such as “reading this together with Alice”, “recommended by Bob”, links to reviews, or whatever else strikes you fancy)</li>
<li>Show reading progress bar, progress text (no bar) or don’t show progress at all</li>
<li>Display time since last update (e.g. “2 days ago”)</li>
<li>Custom strings for time since last update (e.g. for quick and easy translating, or to change “2 days ago” to “2 floobargles since last update”)</li>
</ul>
Almost all HTML elements have dedicated CSS classes to allow you to easily override the style. The widget looks OK on the most popular WordPress themes.
Requires PHP 5.4 or later (PHP 7 supported).
The source is hosted on <a href="https://github.com/cmeeren/gr-progress" rel="nofollow ugc">GitHub</a>.

GR Progress Widget

Widget to display shelves and reading progress from Goodreads.

I am reading (continued) vs GR Progress Widget