One of my favourite photographic books is Jim Brandenburg's "Chased by the Light".
Idling away a quiet half an hour this morning before the kids surfaced, I found this documentary on the project on Youtube. (It's about an hour long, so my quiet half an hour became a very enjoyable hour).
https://www.youtube.com/watch?v=Y3vW1kglEnkWell worth a watch, in my humble opinion.