Many of us have at some time or the other satiated our artistic desires by coloring using the ' Painting by Numbers ' concept. We have fond remembrances of the time spent filling up various shapes with colors. All we needed to know was the color that corresponded to a particular number and following that code we could conjure up beautiful paintings that would befit a professional artist.
This concept goes a long way to the 1950's when it was not considered only child's play but was taken more seriously. People enrolled in classes to learn the art of Painting by Numbers and it was considered a hobby in itself. Many people redid famous paintings that had complicated set of numbers and professionally framed these pieces of art for everyone to see.