Guillaume Charbonneau, known under the artistic name Onno, is a Montreal artist. Passionate about design, architecture and travel, he traveled the world with his sketchbook always in his pocket. His works have been exhibited for ten years across Quebec and the United States. He was also a guest artist at MAC (Montreal Museum of Contemporary Art) in 2015.

Drawing and painting have always been his means of expression since a very young age. After several years of experimentation with different supports and mediums, he ended up developing his own technique: he painted with his fingers directly on the canvas. This allows him to more easily transmit his emotions, through each of his subjects, to create superb monochrome portraits.