daviec's link has this synopsis which probably offers the best description of the book for those who are interested:

Â* Raw Music Material: Electronic Music DJ's TodayÂ*Â*

Synopsis
Electronic Music in the last years has conquered the Western World with the force of a thunderstorm. It has created a new movement that expresses itself in Love Parades in Berlin and Zurich and in club scenes that the "old" rock and pop music never even dreamt of. Despite its protestant reputation of being a boring place, Zurich/Switzerland has become a European center for Electronic Music. One of its most popular clubs, founded in 1997, is "Rohstofflager" ("warehouse for raw material"). It has invited almost all Dj's of importance, among them, world famous Jeff Mills and Curtis "Cajmere" Jones from Chicago, Kevin Saunderson, Derrik May, Juan Atkins and Robert Hood from Detroit, Laurent Garnicr from Paris, Claude Young from Glasgow, Richie Hawtin from Windsor/Canada, Luke Slater, Dave Clarke, Kevin "Hype" Ford, Ray "Grooverider" Bingham, "Goldie" and Roni Size from the United Kingdom/London/Bristol, Cisco "The Advent" Ferreira from Lissabon, Helmut "Hell" Geier and Maximilian "Westbam" Lenz from Germany, Cari Lckebusch and Adam Beyer from Stockholm etc. The stars of the international Electronic Music scene are represented in this book, not only through panoramic color portraits, but also in statements explaining why they do what they do; what happens with them while entertaining the feverish saturday night-dancers of today; and what happens when they make the people fly to their rhythms. This is a book for club-goers who want to know what their Dj's really feel and think when they are in action. And, last but not least: get hot and chill-out with the music-CD included in this trendy volume of photographs and very personal statements!