Strength and Conditioning Study Material

Hi all! I’m registered to take the NSCA strength and conditioning certification exam the end of september. I’ve been searching for an audio book to help me study, something I can listen to in the car. Any idea if I could find this somewhere? I haven’t had much luck. Also, any advice is greatly appreciated. I have a pdf of one of the books on my laptop, but am looking for some other material that may be helpful.

Thank you!