Juan CalleJuan Calle is a former biologist turned science illustrator from Bogotá, Colombia, who trained on the Science Illustration programme at California State University, Monterey Bay, USA. He worked for field guides of plants and animals of his coutry of origin, Colombia, and now works in his own art studio, Liberum Donum, creating concept art, storyboarding and his passion, comic books. Read More Read Less