There is surprisingly little in the way of biographical regarding Orbik. A brief Wikipedia entry is here, and here is a snippet on his Web site.
Orbik was a student of illustrator Fred Fixler and eventually took over Fixler's teaching duties while pursuing commercial work. He cites as influences "Robert McGinnis, Gil Elvgren, Dean Cornwell, Mead Schaeffer, Andrew Loomis, John Buscema... and a healthy dose of Norman Rockwell." That is a fine set of inspirations.
I will deal with Orbik's painted work in another post. For now, I'd like to show some of this drawings, many of which were "timed" (by the clock). These usually combine sensitive lines with broad, bold strokes of graphite that might be described as "painterly."