Eric Petersen's style is influenced by instructional graphics, video games and the look of vintage comics of the 1940s. Petersen draws uniform lines on a computer to strip away some of the human element and expressive quality seen in non-digital work. Petersen uses perspective and unnatural colors to set up a voyeuristic feeling and create an unsettling mood. He is interested in the combination of a purely functional illustration style with an emotional scene. Eric Petersen's subject matter typically consists of people and simple environments. He aim to create a sense of ambiguity and allow the viewer to imagine their own narrative.