Jürgen Knauss
Jürgen Knauss (born March 14, 1938) is a German entrepreneur, marketer and photographer. Personal life. Knauss was born in Darmstadt in 1938. He became a trained typesetter and studied graphics. Knauss is married to the publisher Claudia Knauss. Career. At the beginning of his career, Knauss worked for a printing company in Brazil. After he met Friedrich W. Heye in 1964, he started working as a layout consultant for Heye Verlag. In 1971, Knauss met the founder of McDonald's Ray Kroc in Munich, which led to a 40 year long marketing partnership. Knauss became managing director of  the advertising agency Heye & Partner in 1974. In 1984, he was appointed board member of Needham Worldwide (today DDB). After F.W. Heyes death in 1988, Knauss and his wife Claudia took over Heye Verlag in 1989. In 2003, Knauss and his agency developed the McDonald's slogan "i'm lovin' it" (German "Ich liebe es"), which won a worldwide competition between 14 agencies; he is best known as the inventor of this slogan. He resigned as CEO of the company in 2007 and served as chairman until 2014. In 2014, Knauss founded the publishing house +Knauss Verlag with his  wife Claudia; he appears in the publications as Yussof Knauss. 2015 they opened the workspace +Knauss Werkraum in Munich. A part of his photographic work is shown in exhibitions.