The individual letters have been designed on the basis of a rigorous, detailed scheme: Forty-nine squares, black and white in rows alternately, no closed areas, gaps the size of one square. Within this scheme, the aim has been to obtain the greatest possible likeness to 'ordinary' letters, and, simultaneous, a logical system of forms. The letters c and u, k and y, a and v, to exemplify, are identical, only variously turned.