These two free Kindle books are from independent publishers. I'm not familiar with the authors or the content in their books, however, both are listed as Christian authors. Remember, they may not be free anymore when you go to download them, so check the price.
The Forgiveness Formula: Finding Lasting Freedom in Christ by CJ and Shelley Hitz
Wholehearted: Three Life-Changing Commands of Jesus by Roger Wernette
Neither book is free for Nook at this time.