John Ankerberg is a graduate of the University of Illinois—Chicago, and holds three advanced degrees, including a Master of Arts in Church History and Philosophy of Christian Thought and Master of Divinity (with honors) from Trinity Evangelical Divinity School, and a Doctor of Ministry degree from Luther Rice Seminary. He has authored over 150 books and 155 study guides. He has coauthored the two-million-selling Facts On series of apologetic books.
John Weldon has authored and co-authored more than 100 books. He has a PhD in comparative religion, a DMin with an emphasis in contemporary religious movements, as well as master's degrees in divinity and Christian apologetics.