Best Zep Book or Bio

For the diehard fan who can’t get enough, what is your favorite book or documentary?

My top three favorite books, in order of preference are:

1. When Giants Walked the Earth, by Mick Wall

2. Led Zeppelin, by Bob Spitz

3. Hammer of the Gods, by Stephen Davis.

Have not yet read Jimmy Page bio, but it’s on my list.

Docs

Loved Becoming Led Zepellin last year, because it was all about the music, their blues roots, and how they came together and took off. I wanted more, but it was intentionally limited to their early career(?).