Surface structures of walls and stones are transferred onto paper or fabric using crayons and pencils, but mostly by means of a Chinese tampon technique acquired in the Palace Museum in Beijing. Often, a traditional silk specifically developed for East Asian calligraphy serves as the image support. Size and colour are adapted to on-site conditions.
The choice of location and of the specific visual excerpt is subjective. It is however based on information collected from what has been communicated by people. A prerequisite is that it should be recognisable as an analogue memory store.