Outsider art 178 Art brut 29 Folk art 23 Art, American 19 Primitivism in art 19 Art collections 18 Art 15 Art, Modern 12 Artists 12 History 11 African American artists 10 Outsider artists 8 Folk artists 7 African American art 6 Art and mental illness 6 Criticism and interpretation 6 Private collections 6 Themes, motives 6 Artists with mental disabilities 5 Exhibitions 5 Outsider Art 4 African American folk art 3 African American painters 3 Art and society 3 Drawing 3 Painters 3 Painting, American 3 Painting, British 3 African Americans 2 Art and religion 2