Nancy Grant Harrington is a Professor in the Department of Communication at the University of Kentucky, USA. Her recent books include Health Communication (2nd ed., Routledge, 2023) and The Routledge Handbook of Health Communication (3rd ed., Routledge, 2021).

Katharine J. Head is an Associate Professor in the Department of Communication at Indiana University Indianapolis, USA. She has published over 90 academic journal articles and book chapters.