 Ulriksen's first significant illustration assignments came in 1993 from "The New Yorker", at the time under the helm of editor Tina Brown, a relationship that has continued to this day.His contributions made history for the magazine with the first cover illustrating the content of the issue (the White House under then-President Clinton, which was also the first issue to include, in the article, further small pictures illustrating the content of the article).Since then he has been a regular contributor to the magazine, and has been responsible for numerous cover images.