Amazon’s Daily Read of the Day is The Power of a Praying® Life by Stormie Omartian for $.99.
I have Power of a Praying Wife and have read through it a few times when things are out of whack with Hubs. It’s amazing how a little prayer and self-reflection can get things back into order.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.