He was one of Canada's most distinguished men of letters, with several volumes of plays and collections of essays, speeches, and belles lettres to his credit. As a novelist, he gained worldwide fame for his three trilogies: The Salterton Trilogy, The Deptford Trilogy, and The Cornish Trilogy, and for later novels Murther & Walking Spirits and The Cunning Man.
His career was marked by many honours: He was the first Canadian to be made an Honorary Member of the American Academy of Arts and Letters, he was a Companion of the Order of Canada, and he received honorary degrees from twenty-six American, Canadian, and British universities.