How to Find & Correct Writing Errors: The Proofreading Guide (Udemy.com)

Dr. Duncan Koerber has taught writing and communications courses for the past 12years at eight Canadian universities to thousands of students.

Oxford University Press recently published his writing textbook,Clear, Precise, Direct: Strategies for Writing(2015). Available on Amazon, the book considers the seven most common errors (interfering factors) in writing and how to improve them (enhancing factors). His second book,Crisis Communication in Canada, is now out on Amazon from University of Toronto Press.
Currently a professor at Brock University in Ontario, Canada,Duncan Koerber worked for nearly 10 years in reporting and editing roles for the London Free Press, the Mississauga News, and the University of Toronto Medium. He has freelanced for magazines and newspapers, including the Toronto Star.
Duncan Koerber has been a successful freelance editor, earning a 95%success rating on Upwork.

Duncan Koerber has a bachelor of arts degree in English, Professional Writing, and Political Science from the University of Toronto (2001), a master of arts degree in Journalism from the University of Western Ontario (2003), and a Ph.D. in Communication and Culture from York University and Ryerson University (2009).

His academic writing, which focuses on media and journalism history, writing pedagogy, and public relations crisis communication, has been published in the Canadian Journal of Communication