Open this photo in gallery: At his career peak, Matt was one third of a trinity himself, with Chester Brown and Seth, all published by Montreal’s Drawn & Quarterly.Handout The cartoonist Joe Matt once encountered Art Spiegelman, whose Pulitzer-winning graphic novel Maus told the story of how his Jewish parents in Poland survived the horrors of the Second World War. Matt felt his own boring life could not possibly compete with that of his artistic hero. “What do you do” he asked Spiegelman, “if you don’t have a father who was in the Holocaust?” Spiegelman’s reply is unknown. But the...