Greg Russo's book is excellent and has trhree revised, updated and expanded editions – Revised, The Son of Revised and The Return Of The Son Of Revised.

Zappa Wiki Jawaka:

This is an authorized reprint of Greg Russo's articles titled "The Collected History and Improvisations of Frank Zappa" in the February 1993, May and June 1994 issues of Discoveries Magazine.

ARF: Bibliography
Zappa Wiki Jawaka

ARF: Bibliography
Zappa Wiki Jawaka

This newest edition of the book has already 352 pages and 380 illustrations. Additionally it is available at Crossfire Publications as pdf file for the special price .

ARF: Bibliography
The Idiot

New "much larger" edition available since January 2017 as paperback book or downloadable pdf.

Here are some of the many interesting items shown unedited for the first time in Cosmik Debris:
- The Look Magazine article that interested Zappa in the music of Edgard Varèse
- The Varèse and Stravinsky LPs that became Zappa's first album purchases
- The complete rundown of the Pal/Studio Z era (1961-1965)
- The Brian Lord and Junier Mintz singles that all other books claim weren't released!
- The infamous 1965 'Studio Z raid' front page article in the Ontario Daily Report newspaper
- A detailed analysis of the classical composers that influenced Frank Zappa
- 'Conceptual Continuity Clues' for each album
- The most complete gig list ever!
- An absolutely amazing discography and session list going up to the end of 2016

Bookshops

Crossfire Publications

The last, 2017 edition, translated to Italian by Claudio Mapelli.

Bookhops

Arcana Edizioni
Book Depository (worldwide free shipping)
amazon.it
amazon.com