Claudius Kroker read political science, theatre arts, and public law at the Universities of Erlangen and Leipzig. He held positions at newspapers, news agencies, and radio news services, worked as press relations officer, PR advisor, and finally as the managing editor of a PR agency in Bonn. He has been a freelancer since 2002. He supports press and public relations activities of industrial and commercial enterprises, associations, universities, and other public and private entities and ghostwrites speeches, lectures, and specialist articles. He teaches seminars for a number of workshop providers and gives lectures on press relations, concepts of PR, press releases, and speech writing. Between 2008 and 2014, he was a member of the board and spokesman of the Association of German-Language Speechwriters. He ist lecturer at the Federal University of Applied Administrative Sciences and the Bonn-Rhein-Sieg University of Applied Sciences.