A museum curator, Hermann Kern spent six years researching labyrinths for an exhibition in Italy in 1980. He then expanded that information and assembled the most complete compendium of labyrinth information ever assembled, from history to the modern era. Published by Prestel, a company in Munich, Germany, that specializes in art books, this compendium was available only in German until the current English edition, which took three years to translate and update. New material has been added to cover discoveries and contemporary labyrinths of the last 20 years, making this the most complete presentation of labyrinth information anywhere. It contains hundreds of photos. Granted, Hermann Kern is quite opinionated and confident of his opinions. Nevertheless, any serious labyrinth enthusiast should own this book. I rate it four rather than five stars because, except for a color section in the beginning, all of the photos are in black and white.