Andreas Berg is a Swedish illustrator, teacher and author. In 1997, he was appointed Sweden’s first professor of illustration at Konstfack University of Arts Craft and Design in Stockholm. Today he holds a professorship in illustration at the Oslo National Academy of Arts, Norway. He edited, together with Sara Teleman, and wrote himself four chapters in the first comprehensive presentation of Swedish illustration history (published in 2013). At Pillow Lava, he will give a brief introduction to how the design of trolls was consolidated through the care of Norwegian and Swedish illustrators.