Mark graduated with honors from Art Center College of Design in 1993. He then moved to New York to pursue a career in illustration. Early clients included the New Yorker, Rolling Stone and Sony Music. In 2003, he returned to the Los Angeles area with his wife, fellow artist Esther Pearl Watson, broadened his work and began showing in galleries, while continuing to work with clients such as Country Music Television, Getty Publications, McSweeney's, The New York Times, Los Angeles Times, GQ and Hurley. He recently served on the board of ICON, the illustration conference, and currently teaches at Art Center, his alma mater.