These are examles of the iBookDB Book Information widget. They are aligned by putting them in divs. To align left I used
<div style=”float:left; margin-right:10px;”></div>
and to align right, I used
<div style=”float:right; margin-left:10px;”></div>
You can adjust the margins to your liking. Have fun using these widgets. For more information or help on using them email firstname.lastname@example.org
You can find this widget in the Plugins directory under Plugins->Add New by searching for Internet Book Database
For books that have Previews, if you would like the preview to appear on page like on the one in this post, you need to install GreyBox.