Klaus Gräff has been working as a long-time managing director in the marketing and advertising industry and has gained extensive experience in the fields of digital strategy, advertising, marketing, radio and promotion. Since 2014 he has been the managing director of the Art Directors Club (ADC) for Germany. The ADC is an independent association based in Berlin with more than 700 members from various media professions. The annual ADC competition is considered the largest creative competition in Germany.