At least it was free on Tuesday. You can download it here.
And if you don’t have a Kindle, you can still read it on a PC, Mac, iPad, etc. You can get more information about how to do so here.
This is a fantastic book, and the author understands what living with disability is like through his daughter with autism and developmental delays.
Paul Miller spoke at the most recent Desiring God Conference for Pastors: Helping Your People Discover the Praying Life. He also lead devotions the next morning, and that was even better.