Yayoi Kusama is a Japanese artist whose paintings, collages, soft sculptures, performance art and environmental installations all share an obsession with repetition, pattern, and accumulation. (She has described herself as an "obsessive artist".)
Kusama's work is based in Conceptual art and shows some attributes of feminism, minimalism, surrealism, Art Brut, pop art, and abstract expressionism, and is infused with autobiographical, psychological, and sexual content. Kusama is also a published novelist and poet, and has created notable work in film and fashion design.
By 1950, Kusama was depicting abstracted natural forms in watercolor, gouache and oil, primarily on paper. She began covering surfaces (walls, floors, canvases, and later, household objects and naked assistants) with the polka dots that would become a trademark of her work. The vast fields of polka dots, or "infinity nets," as she called them, were taken directly from her hallucinations.