He has also taught in London and New Zealand. Research interests include rhetorical criticism, organizational communication, public relations/crisis communication, and rumor/urban legends. Before joining the academy, Llewellyn worked for a decade in state and local government where he coordinated public participation in environmental protection programs, directed media relations and public information efforts, and wrote speeches for cabinet secretaries. He has published in Society, American Communication Journal, and Public Relations Quarterly. Scholarly articles and chapters address corporate social responsibility, organizational ethics, and urban legends, as well as numerous op-ed pieces that apply rhetorical criticism and analysis to issues in the news.