Hi,
I've listened to this audiobook, "Relentless: From Good to Great to Unstoppable" by Tim S. Grover, and thought you would enjoy it, too.
It's totally free and you won't need a credit card if it is your first time accepting an Audible book from a friend.
After you accept the book, you will be prompted to download the Audible app to start listening.
Enjoy!
Sent from my iPhone