DuBois passed the aptitude tests required for admission and entered the school, a century-old institute in St. Germain des Prés, known to most as Rue Madame.
Upon completion of his studies at Rue Madame, he enrolled for an advanced degree at École Supérieure des Arts Estienne, also in Paris.
[4] After completing his studies at École Estienne, and obliged to serve France for two years, in 1989 he arrived in the Maritime provinces of Canada to serve as a graphic designer for the French Ministry of Cooperation where he worked at various magazines in Petit Rocher, New Brunswick, Yarmouth, Nova Scotia, Caraquet, New Brunswick and Summerside, Prince Edward Island.
[6] Although primarily noted for his extensive work as a book illustrator, his work has also appeared in The New York Times, The Wall Street Journal, Time magazine, GQ, Rolling Stone, The New Yorker, The Washington Post, Le Monde, The Guardian, Playboy, Newsweek, Entertainment Weekly, Harper's, The Atlantic and others.
[10] In April 2018, Canada Post released the Gérard DuBois stamp as one of five in the Great Canadian Illustrators series.