Hans Schleger signed his work as Zéró. He studied in Berlin and for five years worked as freelance designer the United States. He later set up his own studio in London. He was commissioned by The Council of Industrial Design to design the symbol for their Design Centre in the Haymarket, London. As well as a desiner, he was a visiting lecturer to the Chelsea Polytechnic, the Central School of Arts and Crafts, the Royal College of Art, all in London, and the Regional College of Art, Manchester.