The Guitar Songbook:
The VH1 DVD (Inside)Out:Warren Zevon featuring the making of The Wind and WZ's last hurrah:
(Obviously the cover was printed prior to the Grammy® Awards, as The Wind did win two.)
The Oral History Biography by Crystal Zevon:
And HERE is the link to Amazon's Warren Zevon.
"Lawyers, Guns and Photos" by George Gruel, Aide-de-Camp
See BigGorillaBooks.com for purchasing information
There were two other songbooks: "Excitable Boy" and "Bad Luck Streak In Dancing School," long out of print, but infrequently available for exorbitant bids on eBay.
Here's a new book, as of June 2016...