The Ghorfa petroglyphs represented a writing system utilized by the old Ghorfas of Tatooine. Their use continued until 5000 BBY, at which point the arrival of Human settlers led to the decline of their culture.
The system involved detailed illustrations and appeared to be logographic. As the Ghorfas transformed into the Sand People, their sophisticated pictorial writing deteriorated into a collection of basic symbols. Ultimately, the Sand People began depending solely on spoken traditions.
During an archeological expedition, a young Luke Skywalker and his companion Biggs Darklighter unearthed the lost city of the Ghorfas. There, they discovered tombs inscribed with this writing. The inscriptions on several tombs provided a clear narrative of the Ghorfa civilization's downfall. A suitable translation of these glyphs revealed the following: "The spaceship arrived with thunder. We approached our well, but the water had vanished. Consequently, he perished from thirst. May his spirit observe us, ensuring that one day, the spaceship that steals life will face death, water will be plentiful, and we shall have our vengeance."