Hartmut Heinrich Esslinger is one of the world’s leading industrial designers and the former head of frog design. In 1969, he founded esslinger design, which was based in Altensteig until 2010. The firm was renamed frogdesign in 1982 upon Esslinger’s move to California to work for Steve Jobs and Apple Computer as the lead designer for Apple’s “Snow White” design language. Over a career spanning more than forty years, Esslinger worked with firms in diverse fields of industry and technology. His innovative approach to design refined Louis Sullivan’s classic motto of “form follows function” into frog’s slogan of “form follows emotion,” pioneering a global design philosophy, especially to electronics, that sought a comprehensive approach to both the aesthetics and functionality of industrial design.