The proposed book is not only a tribute to the work of Bruckner (and indeed also a personal tribute, since Bruckner wrote his book at the Institute of Geography of the University of Bern), but references to Bruckner s book are also a conceptual tool in the proposed book, though used sparingly and thoughtfully. Apart from providing historical context, references may facilitate introducing some complex topics, for instance by first presenting Bruckner s view and then complementing the picture with today s understanding. References can be used for contrast: Comparing Bruckner s methods and data...