Even though it is all Black & White, This is a good book on GMC HEAVIES UP UNTIL 1987(SOME 1988'S were made,brigadiers,generals, but they were not mentioned), Book also does not mention Chevy Counterparts: Bison,Titan 90,Bruin,90 Series. Hopefully someone will do a book on the Chevy Heavies.This book even features A small mention/section on WHITE GMC/Volvo GM .Wish it would have had some color.. Hopefully there will be another book to cover this(Ron Adams?At work series in Color) Can't complain. Very Good And Informative book.