Thomas Barker is Professor of Communication in the Graduate Program in Communication and Technology (MACT) in the Faculty of Extension at the University of Alberta. His PhD is from the University of Texas, and served as Director of Technical Communication and Rhetoric at Texas Tech University (2003-2012). He published Writing Software Documentation, second edition with Allyn & Bacon Press in 2003 and has articles on writing and professional communication contributed to Technical Communication,Technical Communication Quarterly, and The Journal of Business and Technical Communication. He is a Fellow in the Society for Technical Communication and a recipient of the J. R. Gould Award for Excellence in Teaching Technical Communication. He has directed doctoral studies in public policy writing, professional issues in technical communication, intercultural communication, document design, and writing program administration. His current work is in risk communication with an emphasis on public health and occupational health and safety. He is principal investigator on the Healthy Workplaces for Healing Professions funded by the Government of Alberta Ministry of Labour.