Visitors' names form the majority of the "graffiti", but there are also longer texts which provide more information about their authors, including their occupation. They tell us that philosophers, doctors, and high-ranking officials were among the pilgrims. Some of the texts are of a religious character ("proskynema)." The graffiti are being studied since 1996 by the Epigraphical Mission from the Polish Centre of Mediterranean Archaeology University of Warsaw in cooperation with the Egyptian Ministry of Antiquities. One such "graffito" attests that visitors had to explore the dark tunnels and painted images by torchlight by making a pun on the visitor's name, Dadouchios () and the :