The research area is the lettering in architecture. The subject of this dissertation thesis doesn't include the corporate identity, advertising communication and systems with the sole purpose to navigate. The main focus are the typeface characters that gain another creative and expressive dimensions in the architectural environment. This letterings don't fulfill the primary role only, but they have an important position in the final appearance of architectural works. The thesis describes the context between architecture and Latin script since its establishment through an important historical periods. Detailed mapping the relationship between lettering and architecture in each direction of the 20th century and in the works of contemporary architects, architectural studios.