[1] She worked as a freelance journalist and writer, publishing in The Globe and Mail, Reader's Digest (in the Canadian, International, and Chinese editions), BC Business, and online magazine The Tyee.
On the basis of this work, Cornwall wrote the critically acclaimed and internationally accepted book Letter from Vienna: A Daughter Uncovers her Family's Jewish Past (1995).
This series culminated in their sixth book project, Catching Cancer: the quest for its viral and bacterial causes, which was released in March 2013.
This includes her 2011 biography of the late Curtis Earle Lang, a photographer and businessman with a Beatnik background, who had a twelve-year friendship with her husband.
[17][18] Cornwall gives seminars on creative writing of memoirs at Simon Fraser University and Douglas College in British Columbia.