Book on Led Zeppelin's music?

[Kurisu]

I'm wondering if anyone knows of a book that goes into an in-depth analysis of Zeppelin's music. I'm thinking something along the lines of John Coltrane : His Life and Music http://www.amazon.com/exec/obidos/tg...glance&s=books or The Beatles As Musicians http://www.amazon.com/exec/obidos/tg...glance&s=books.

Hammer of the Gods has some interesting information, like which songs where ripped off of whom, but it doesn't even start to do any sort of analysis of the music, its influences, their evolution as musicians, etc. Just wondering if one is out there. I doubt it though.

[P. Aaron]

A tuning: E to E; C-G-C-G-C-D. Alot of Zep tunes outta that one tuning.

If you're looking for style analysis, there ain't much, except your own research.