Books and Magazine, Publisher and Wholesaler. Our principal activity is educational publishing with emphasis on publication of textbooks and supplementary materials for the nine-year primary school. In 2003, we started publishing our first magazine – National Geographic Junior, which was followed by National Geographic Slovenia (2006) and National Geographic Popotnik (NG Traveler) in 2007. Rokus Klett Publishing House is in joint ownership of Rok Kvaternik and German publisher Ernst Klett Sprachen. Its management is in the hands of Managing Directors Rok Kvaternik and Philipp Haußmann. The current number of employees is 44 and is constantly rising. In the last few years it has grown by 5 people a year. Most employees are aged between 25 and 35, with almost half of them having university education.