Uncommon art styles refer to unique and less widely practiced methods of artistic expression that often challenge traditional norms. These styles can include techniques like surrealism, which blends dream-like imagery with reality, or outsider art, created by self-taught artists outside the mainstream art world. Such styles often emphasize individual creativity and personal vision, leading to innovative works that may not conform to established artistic standards. Examples include abstract expressionism, which focuses on spontaneous, automatic, or subconscious creation, and installation art, where artists create immersive environments that engage viewers in new ways.