Michael H. Eaves is a full professor of Communication Arts at Valdosta State University, and has been a professor there since 1993. Eaves has been the director of speech and debate at Valdosta State University since beginning there in 1993, and is a member of the National Communication Association.
Dale Leathers (1938–1997) was the sole author of editions one, two, and three of Successful Nonverbal Communication. He was a professor of speech communication at the University of Georgia as well as a former president of the National Communication Association and the Southern States Communication Association.