FREE Audio Book Download- Desiring God by John Piper This post may contain affiliate links. Please see the full disclosure policy here. Posted on November 3, 2009 Written by Mary Leave a Comment ChristianAudio.com is offering a free download of Desiring God by John Piper during the month of November. Just Go here and add it to your cart. Then use coupon code Nov2009 at checkout to get it for free. Thanks, Pocket Your Dollars!