Dr. Herrera earned a Ph.D. from Marquette University in philosophy. A masters in philosophy from Marquette, and a masters in apologetics from SES. He has written a book on open theism, and published several articles for the Christian Research Journal and the Christian Apologetics Journal. Currently, his vocation is data warehouse development, and his avocation is teaching. He hopes to invert them in the future. He is currently working on a project management article, a book on Thomas Aquinas's epistemology, and a book reconciling the Calvinist and Arminian debate.