Autumn Rhythm (Number 30), painted in 1950, is Jackson Pollock's best-known work and one of the largest — 105 by 207 inches of poured and flung paint on unprimed canvas. It hangs at the Metropolitan Museum of Art in New York, which bought it in 1957, a year after Pollock died.
Here is what it actually is, and where the technique that made it came from.
The title is not a description

Worth knowing first, because it changes how you look at it. Pollock numbered his paintings deliberately. He and his wife, the painter Lee Krasner, moved to numbers precisely so that viewers would stop hunting for subject matter and look at the paint instead.
As Pollock put it, numbers are neutral — people look at a picture and see what they should see. Evocative titles like Autumn Rhythm and Lavender Mist were mostly attached afterward, and the seasonal reading of the browns and blacks is something viewers brought to it rather than something he painted in.
A related correction, since it circulates: Autumn Rhythm (Number 30) is not the same painting as Number 1, 1950 (Lavender Mist) or Number 32, 1950. Three separate works from the same extraordinary year.
What it is made of
Not artist's oil paint. Pollock used commercial enamel — house and industrial paint — because it was cheap, fluid enough to pour, and dried fast. He worked on unprimed cotton duck, so the paint soaked into the fabric as well as sitting on it.
The canvas was on the floor of a converted barn at his home in Springs, on Long Island. He worked from all four sides, walking around and into the picture, which is why it has no top, bottom or focal point in the usual sense.
His tools were sticks, hardened brushes and basting syringes rather than loaded brushes. Very little of the paint was applied by touching the canvas at all.
Where the drip technique came from
It did not arrive from nowhere, and the usual account leaves out the most interesting part.
In 1936 Pollock joined the Experimental Workshop run by the Mexican muralist David Alfaro Siqueiros in New York. Siqueiros was interested in industrial materials and unorthodox application — spray guns, airbrushes, poured lacquer, controlled accident. That is where Pollock first saw paint being applied by pouring rather than brushing, more than a decade before the drip paintings.
Before that he had trained under the Regionalist painter Thomas Hart Benton at the Art Students League, which gave him a grounding in rhythmic, swirling composition that survives underneath the abstraction. Benton's influence is easier to see than most people expect.
Pollock also spent years in Jungian analysis, and the idea of painting as something surfacing from the unconscious shaped how he and his critics described the work.
The drip period was short
The poured paintings run roughly from 1947 to 1950, and 1950 was the peak. Within a year of finishing Autumn Rhythm he had largely abandoned the technique and returned to black, more figurative work.
Part of what changed was fame. In 1950 the photographer Hans Namuth spent months photographing and filming Pollock at work, and those images — the crouching figure, the paint in mid-air — did more to make the technique famous than the paintings did. Pollock found the performance of it corrosive. He had been sober for two years when the filming began and was drinking again by the time it ended.
He died in a car crash near his home in August 1956, aged 44.
Why it was taken seriously
Three things, none of which are about splashing paint around.
- It is not random. The lines are laid down with consistent weight, spacing and rhythm across a very large surface, and no area collapses or falls out of key. Try it and you will find out quickly how hard that is.
- It has no hierarchy. There is no center and no subject, so the eye moves continuously rather than settling. Critics called it all-over painting, and it broke a compositional convention that had held for centuries.
- The process became the subject. The painting is a record of the movements that made it. That idea — art as evidence of an action rather than a depiction of a thing — fed directly into performance art, process art and much of what came after.
The critical reception at the time was genuinely split, and the ridicule was real. Its standing now was not obvious then.
Seeing it
It is in the Metropolitan Museum of Art's permanent collection and is not for sale, so the auction speculation you find attached to it online is beside the point. Reproductions also serve it badly: at seventeen feet across, the scale is the experience, and a photograph on a screen turns it into a texture.
Pollock's other major poured works are spread across the Museum of Modern Art, the National Gallery of Art in Washington, and museums abroad.
If you want to try pouring paint
The modern equivalent is acrylic pouring, and it is far more approachable than Pollock's method — fluid acrylic mixed with a pouring medium, tilted across a level surface. Our guide to fluid acrylic and pouring covers the ratios and what actually causes the cells.
Two honest notes if you are looking to buy rather than make. Ledgebay's kits are licensed representational artwork — Americana, wildlife, cabins and florals — so there is no abstract design in the catalog and nothing Pollock-like. What we can do is turn a photograph of your own into a custom paint by numbers canvas. You can see the full range in the shop.