All you have to do is enter your ASIN or ISBN number and the app will set up the link.
The link is display on the left hand side in Red (Read my Book)
It will also allow you to put in a URL to a free sample of your book.
Here is mine.
If you have already set up your fan page, go to http://apps.facebook.com/authorapp/
A page will come up that says 'The Author Marketing App.'
Just click on the 'Let's get started-" button.
From there it will direct you as to what you need to do to set up the page.
Remember to choose your fan page, not your personal page. You will then see the "Read My Book" button on your fan page.
Now just click on the app and you just enter the information about your books.
You can do this one of two ways
1. just put in the isbn or asin number and hit enter.
2. Or fill in the information yourself.
If after you hit enter, you don't see everything you want it to display just hit edit book and put in the additional information.
Hope this helps,
Also, if you want to exchange likes just put your fb url under the post I've made to exchange links.
Have a great weekend,