Since studying graphic design, Frank has been working as a freelance illustrator for magazines, newspapers and advertising agencies. The reduction of form and color is the focus of his work. Frank illustrates a wide range of subjects, from cartoon, fashion, medicine, to psychology.
His illustrations have been published in the Washington Post, Süddeutsche, Zeit, Page, Novum, Psychologie Heute, The Wire China and Monocle Magazine among others. Frank often creates infographics and illustrations for annual reports.