David Cohen is a photographer and archivist who lives in Pokhara Nepal. He is the author of Synthesis Quest and has produced two Bio-bibliographies, one of George Crumb, and one of Phil Ochs. This is all I can find out on him.
The book, as well as containing a biography, of Phil, is a complete annotated bibliography , including writings by and about Phil, reviews, interviews, discography, tapes, film and video, songs, covers, tributes and concert listings.
It was a requested gift for my 60th birthday.

Rog