The "Fou" typeface family was designed as an alternative to "Trade Gothic condensed bold". During the design process of a normally wide font variant a system developed that responds to white space and changing proportions. Thus, round transitions become rectangular and vice versa, space is made and space is taken away. This system and the associated changes are continued on a model with semi-serifs. "Fou" can also be used as an alternative to Din or the wider Q-Type, but in comparison offers more room for emphasis with its italics and condensed styles, expert sets and numerous special characters.