He was not always pursing art and he rarely speaks publicly about his life. He is the only anonymous TEDTalk speaker to date.
Uncommissioned public art.
Uncommissioned graphics that are NOT considered art.
Commissioned public art.
The traditional path is to go to art school and then get work placed in a beginner gallery. Then one progresses to solo shows and expands to additional galleries and higher level galleries.
It is difficult to put one's work out there for people to judge. Artists must keep perspective that they are not always going to have successes. There will be hits and there will be flops.
Art can be approached culturally, politically, and through the eyes of business as these are all elements that are part of the world of art.