Dan Robbins, the artist behind the paint-by-numbers craze that swept America, has died in Sylvania, Ohio at the age of 93, his son told the AP news agency.
He was working at a paint products firm in the 1940s when he invented the kits.
By the 1950s millions were being sold across the US every year.
His inspiration for the idea came from Leonardo de Vinci, who used a similar method when teaching his apprentices how to paint.
The kits contain canvasses with printed numbers which correspond to numbered paints.
A collection of paint-by-number artworks were exhibited at the Smithsonian Institution’s National Museum of American History in 2001.