What do you understand by the terms outsider art and art brut or raw art?

Outsider art refers to artwork created by artists who are not part of the mainstream art world, often due to social, economic, or cultural barriers. Art brut, or raw art, specifically emphasizes works produced by self-taught artists, often characterized by a raw, unrefined aesthetic and a personal, emotional expression. Both terms celebrate creativity that arises outside conventional artistic norms and institutions, highlighting the unique perspectives and experiences of their creators.