The format of the book is 5 x 4cm, cover is made out of wood from elsbeere and the paper is some kind of beautiful vellum paper. What can I say?! WOW. Love this idea, self-ironic insight thing, It's just absolutely brilliant and one of the best books in my shelf from now! Thank you, Frieder!!
(ZWECKLOS = pointless/useless/vain, WIDERSTAND = resistance/resistor)