Ancient Maya graffiti are a little-studied area of folk art of the pre-Columbian Maya civilization. Graffiti were incised into the stucco of interior walls, floors, and benches, in a wide variety of buildings, including pyramid-temples, residences, and storerooms. Graffiti have been recorded at over 50 Maya sites, particularly clustered in the Petén Basin and southern Campeche, and the Chenes region of northwestern Yucatán. At Tikal, where a great quantity of graffiti have been recorded, the subject matter includes drawings of temples, people, deities, animals, banners, litters, and thrones. Graffiti were often inscribed haphazardly, with drawings overlapping each other, and display a mix of crude, untrained art, and examples by artists who were familiar with Classic-period (c. 250–950 AD)