The Madrid Codex is one of the few surviving pre-Columbian books created by the Maya civilization. It is a folding book made of bark paper, containing a wealth of information about Maya rituals, ceremonies, and mythology. The codex is primarily written in the Maya hieroglyphic script and is believed to date back to the late Postclassic period, around the 15th century. This ancient manuscript is housed in the Museo de América in Madrid, Spain. It is considered a crucial resource for understanding Maya culture, particularly their religious practices and calendar systems. The codex is notable for its intricate illustrations and detailed accounts of various deities and rituals.