The turn-around time between an illustration being commissioned by a weekly magazine such as Time is often less than 48 hours from concept sketch to final art for the artist.
Arthur Hockstein, art director at Time Magazine from 1994 through 2009[REF] said of O'Brien that the magazine staff was amazed at the intricacy and draftsmanship of O'Brien's work, delivered under such short deadlines [REF].