Complex sentence: By 1962, most of the company's activities were associated with Canadian publishing, including books by Margaret Atwood, Pierre Berton, Peter Gzowski, Margaret Laurence, Farley Mowat and Michael Ondaatje.
Split into simpler sentences: By 1962, most of the company's activities were associated with Canadian books. Books by Margaret Atwood, Pierre Berton, Peter Gzowski, Margaret Laurence, Farley Mowat and Michael Ondaatje.