Scott

My Reading Library is a very heavy modification of the <a href="http://blog.ashodnakashian.com/projects/now-reading-redux/" title="Now Reading Redux" rel="nofollow ugc">Now Reading Redux plugin by Ashod Nakashian</a> which is a resurrection of the <a href="http://heliologue.com/" title="Now Reading Reloaded" rel="nofollow ugc">Now Reading Reloaded plugin by Ben Gunnink</a> which is a fork of the <a href="http://robm.me.uk/projects/plugins/wordpress/now-reading/" title="Now Reading Plugin" rel="nofollow ugc">Now Reading plugin by Rob Miller</a>.
It allows you to develop a library, show the book details, track your progress, rate the book, and link to a WP post of your book review. It displays the library within the sidebar and on the library/book page with cover art fetched from Amazon.
The home of the My Reading Library plugin is in this WP Repository; however, you may report bugs and receive support: <a href="http://www.affordable-techsupport.com/support/" title="My Reading Library" rel="nofollow ugc">www.affordable-techsupport.com/support/</a>
<h4>Disclaimer</h4>
Please backup your database before installing/upgrading. Thought I attempt to releases bug-free plugins (which is very difficult), my ability to perform tests is limited. If you find any bugs or have feature requests, please kindly report them in the Support Forum within my website.
<h3>Update Path</h3>
<ul>
<li>Pull total pages of book from Amazon and set as property on book edit page.</li>
<li>Use calendar UI for dates on the book edit page.</li>
<li>Set number of books displayed in each widget book category.</li>
</ul>
<h3>Known Bugs</h3>
<ul>
<li>In the book manager, the Title and Reader columns will not sort properly when the title is clicked</li>
<li>The integration with the Twenty Eleven WP Theme is inconsistent and buggy</li>
<li>Total books setting in options does not effect onhold books</li>
</ul>
<h3>Demo Site</h3>
You can see the My Reading Library plugin in action on my demo website: http://test.p4x.org/

My Reading Library

Displays books in the sidebar and library/book page with cover art fetched from amazon.com; displays book details, progress, ratings, and reviews.

Joeri van Veen

The reading progress bar is a great user experience on longreads. Especially if it accurately depicts the reading progress in the article text, and nothing else. This is standard on single blog posts and enabled by default.
Customization:
<ul>
<li>
Location top of screen, bottom of screen or below sticky elements.
</li>
<li>
Select post types you wish the bar to appear, or individual posts.
</li>
<li>
Choose color of the reading progress bar.
</li>
<li>
Have the bar start at 0% even when part of the article is visible.
</li>
</ul>
Behaviour:
<ul>
<li>
The reading progress bar has smooth initializing since part of the text may already be visible, after that a lightweight update-function ensures quick response while scrolling.
</li>
<li>
The bar can attach itself to multiple (sticky) elements that you define as an admin, the first visible element will be used.
</li>
<li>
When there is no (longer a) visible element to attach to, the bar displays at the top.
</li>
<li>
Use <code>dir=rtl</code> on your html tag to have the bar display correctly for right-to-left languages.
</li>
</ul>
Estimated reading time (beta)
Since 1.6.0 this plugin has rudimentary estimated reading time functionality, for when your theme does not support it out of the box. 
There are some potential issues, some of which cannot be fixed in a plugin. If it does not work for you, switch it off. It will have no effect on the plugin then.
This is my 6th WordPress plugin but my first one freely available to everybody. I hope you enjoy using it as much as I enjoy building it!
Regards, 
Joeri

WP Reading Progress

Light weight fully customizable reading progress bar. Sticks to top, bottom or sticky menu, with fallback for small screens. Includes ert (beta).

My Reading Library vs WP Reading Progress