This paper consolidates reflections from different disciplinary perspectives, synergising them under the umbrella of Semiology (L. JÄGER). Hence will be reconstructed, what is called the public space. Using the example of Small Placards (understood as a special Form of Communication; W. HOLLY) the textual and non-textual constitutions of public space will be focused, discussing in which way these two phenomena bidirectionally interact. In order to do so, different types of signs have to be analysed: Here only written-language, pictorial and architectural signs, as resources of semiosis, can be analysed in their function of constituting space. This consideration is entirely framed by a holistic and action-theoretical understanding of communication (i.a. K. EHLICH).