Zennström dropped-out of his photography studies in University of Gothenburg, and spent 2 years assisting Swedish photographer Björn Keller. Later Zennström moved on to became an assistant to influential fashion photographer Steven Meisel in New York. Per Zennström moved to Paris in 1992 and started to work for fashion clients such as Dior, Guy Laroche, Nina Ricci and Galeries Lafayette. Per Zennström has published four books "New Work", "Berlin+Stockholm", "Walking The Dog" and "Venus Murex".