Jo Mackiewicz is a professor of rhetoric and professional communication at Iowa State University. Recently, she published the books The Aboutness of Writing Center Talk and Writing Center Talk over Time. With Isabelle Thompson, she has published a number of articles about writing center discourse, as well as the book Talk about Writing, now in its second edition.

Rebecca Day Babcock is the William and Ordelle Watts Professor at the University of Texas of the Permian Basin. She also serves as director of undergraduate research. Her latest books are Writing Centers and Disability (with Sharifa Daniels) and Researching the Writing Center: Towards an Evidence-Based Practice (with Terese Thonus; revised edition).