Painting on bark paper quickly spread to various villages in Guerrero and by the end of the 1960s, became the most important economic activity in eight Nahua villages Ameyaltepec, Oapan, Ahuahuapan, Ahuelican, Analco, San Juan Tetelcingo, Xalitla and Maxela.
Maya codices (singular codex) are folding books stemming from the pre-Columbian Maya civilization, written in Maya hieroglyphic script on Mesoamerican bark cloth, Amatl, made from the inner bark of certain trees, the main being the wild fig tree or Amate (Ficus glabrata; a synonym of the Ficus insipida).