Sketch is understood as a spontaneous, quick and synthetic drawing. Architectural sketches have a long history as well as numerous circumstances and reasons behind their creation. They were created as records of the reality – to emphasize key elements, as travelling notes, and also as preparation or study drawings before a finalization of a design or a painting. Typically they remained in private collections of their authors and were published only rarely. Nowadays such sketches and drawings provide a valuable insight into the methodology of work of well-known artists and constitute a source of knowledge of history and of the previous form of the objects they are depicting. The draftsmen can be divided into faithful and precise documentalists and artists expressing their personal, free vision and effects of their imagination.