<p>Enzo Mari was an inventor of languages, a constructor of grammars - intended as methods or sets of rules -, deeming these instruments necessary to ¿communicate knowledge with improved quality and efficiency¿.It is impossible to define his discipline or his profession: he is an artist, an industrial designer, a graphic designer, an architect, but also a theorist, a pedagogue, an intellectual, possibly a philosopher, certainly a utopian who knew how to programme quiet revolutions which are, even today, often misunderstood when not totally unknown; these are some of the many facets of a complex and revolutionary personality.</p><p>The root of his design methodology, which characterises the process of all the studies he later conducted, originates in his initial research into the field of visual arts, i.e. the research into the perceptual ambiguity of three-dimensional space that he undertook in the early 1950s, when he was still a scenography student at the Brera Academy of Fine Arts.<