Vernacular art refers to the art produced by people who do not have formal training in art. Synonyms for vernacular art includes folk art, outsider art, naive art, primitive art, and self-taught art. Folk art refers to the traditional art of the people of a particular region, while outsider art is produced by artists who are not part of the mainstream art world. Naive art is art that is characterized by its childlike simplicity and lack of formal training. Primitive art refers to the art of non-Western cultures, while self-taught art is created by artists who have learned their craft without formal schooling. All of these synonyms refer to art that is created outside of the institutionalized art world, often as a form of self-expression or cultural preservation.