This is Grundlagen der Ästhetik Konturierungstechniken für Metallkeramik-Zahnersatz

Or, fundamentals of aesthetics by the renowned masters Yamamoto, miyoshi and kataoka. Originally published in 1991 and very well kept safe and sound in Switzerland. Book is in German language, pages are in excellent shape and all photos and text are clear and concise without wear and tear. A solid addition to any collector or serious ceramist.