Joseph Justin Gustainis (born February 9, 1951) is an American college professor and fiction writer.
When younger, he wrote and published a great deal of academic writing, including the book American Rhetoric and the Vietnam War (1993).
Beginning in the mid-1990s, while retaining his academic job, he began to write fiction.
He has published, so far, two novels – The Hades Project (2003) and Black Magic Woman (2008) – and a number of short stories.
A third novel, a sequel to Black Magic Woman entitled Evil Ways, was published in 2009.In 2013, Gustainis will publish the third book in the Occult Crimes Unit Investigations series, entitled Known Devil.