You can download 'Trusting God' by Jerry Bridges for free at the moment from Christianaudio.com
Ed Shaw says:
"Any book by Jerry Bridges is worth reading and this one comes with three added advantages - 1) It’s free! 2) It’s read to you! 3) It ties in nicely with some of the big ideas of 1 Peter that we're looking at in our current sermon series! It would be great to listen to on your commute into work..."