From 1984 to 1991, she was a lecturer in the School of Translation and Interpretation at the University of Ottawa. From 1989 to 1991, she was a research associate with the Bilingual Canadian Dictionary project at the University of Ottawa. She was Editor-in-Chief of Canadian Dictionaries for the Oxford University Press in Canada from 1991 to 2008, when OUP closed the Canadian dictionary department. Since 2008 she has been sole proprietor of Tours en l'air Ballet Holidays, which organizes ballet-themed trips to North American and European destinations.
- Katherine Barber (2006) Six Words You Never Knew Had Something to Do with Pigs and Other Fascinating Facts About the Language from Canada's Word Lady, Don Mills, Ontario: Oxford University Press. ISBN 978-0-19-542440-9.
- Katherine Barber (2007) Only in Canada You Say: A Treasury of Canadian Language, Don Mills, Ontario: Oxford University Press. ISBN 978-0-19-542707-3.
- Canwest News Service, ”Oxford closes Canadian dictionary division”, October 1, 2008. Retrieved 2008-10-01.
- "Canadian Who's Who 1997 entry". Retrieved February 23, 2006.