Bjarki Hallgrimsson is the Director of the School of Industrial Design at Carleton University. He worked at Lunar Design and DW before starting HPD that developed many award winning products including the Infinity and Nexus Rolllator. His research is prototyping methods and accessible design. His book Prototyping and Modelmaking for Product Design is available in 4 languages. Multiple co-horts of students have accompanied him to Africa to help design products for people with disabilities.