Hallo,
do you mean the more than 400 pages "Die Planung und Entwicklung von Bomben für die deutsche Luftwaffe 1925-1945". A very, very informative work that sheds a different light on quite a few things. It must have been written after the war. I don't even know in what context this was written. If it is a work for allied technical intelligence or a work written in the context for the new german military, after the war. My copy has 2 drawings missing. You have to be fluent in technical german language, otherwise the book is of no use.