Some self-promotion here, but it should be of some interest:
I just published a book about YELLO's early years, covering 1976-1979,
in collaboration with Carlos Perón. (Further volumes are in progress.)
It is available worldwide on Amazon, both digital and physical.
You will find links at the bottom of my "Yello Books" page:
http://www.discog.info/yello-books.html