by age 17 he was working as a staff artist for the Philadelphia Press.
He moved to New York City in 1897, when offered a higher paying job as an illustrator for Joseph Pulitzer's New York World. (just posted about in the story of Nellie Bly and her Around The World in 72 Days adventure)
He was soon known as one of the more talented urban realists who were chronicling in paint the energy and class divisions of modern metropolitan life.
He illustrated for a wide range of popular journals over the next twenty years, including Harper's, Vanity Fair, Life, Look, and Judge
you can see about 700 of his artworks at http://www.artnet.com/artists/everett-shinn/10