http://www.davidccook.com/BooksAdult/CL/index.cfm?N=4%2C62%2C1%2C5
Click the link and you can order a FREE Francis Chan book. If you haven't read it already, I highly recommend Crazy Love. AMAZING! Forgotten God is another adult book and the others are children's books he has written.
Enjoy!
EDIT: It was only for a limited time and they already took the offer down. Sorry!