A Swiss architect, artist, painter, typeface designer, industrial designer and graphic designer.

After an apprenticeship as a silversmith during 1924-1927, he took up studies at the Bauhaus in Dessau under many teachers including Wassily Kandinsky and Paul Klee.

Bill is widely considered the single most decisive influence on Swiss graphic design beginning in the 1950s with his theoretical writing and progressive work. His connection to the days of the Modern Movement gave him special authority. As an industrial designer, his work is characterised by a clarity of design and precise proportions. He sought to create objects so that the new science of form could be understood by the senses: that is as a concrete art. He made spare geometric paintings and spherical sculptures, some based on the Möbius strip, in stone, wood, metal and plaster.