Roberto Hamm was trained in Argentina and Germany, and devised new experimental types, in an attempt to apply typographic, rather than calligraphic, norms to Arabic. He sought, for instance, to reduce the maximum number of forms for each letter from four to two, in the interests of both readability and economy. His designs were not adopted, but they can be regarded as predecessors of some of the more recent modern letter designs of the digital era.
Book:
Pour une typographie arabe
contribution technique à la démocratisation de la culture arabe
HAMM, Roberto. Paris: Sindbad, 1975. 196pp.