Create a Widget for iTunes
I went on over to Apple's iTunes website to work on some marketing. I found a way to create widgets for my books at http://widgets.itunes.apple.com/builder/
As you can see from the graphic, I just had to choose from the type of widget I wanted, and then select the book I wanted to highlight. I then copied and pasted the code for the widgets in this here website, and violets!
Here's the widget I just created for my series, The Helleborine Chronicles: