Christian audio is having a sale on 10 books (99¢ each!) for the next 7 days (the sale concludes 7/31). If you like to listen to spiritually profitable material while driving, exercising, or working around the house or yard, these may be helpful for you.
Several titles look particularly interesting, including books by John Stott, G. K. Chesterton and A. W. Tozer.
Look here for all the deals: 99 cent sale!.