Dr. John Gresham is a retired seminary professor (Kenrick-Glennon Seminary in St. Louis and Sacred Heart Major Seminary in Detroit). His theological training includes a Master of Arts degree from Wheaton College and Ph.D. from Baylor University as well as a certificate from the Alleluia School of Spiritual Direction, Augusta Georgia. He spent time in charismatic and Pentecostal churches, then in the Episcopal Church on his way to full communion with the Roman Catholic Church, serves on the board of Pentecost Today USA and remains active in ecumenical dialogue. His books include Jesus 101 and Holy Spirit 101.