Justin Martyr's Student Tatian: His Beliefs on the Trinity, the Creation, Free Will, and More by Robert Alan King is a booklet with over 4,700 words. This treatise discusses the beliefs of Tatian on a variety of subjects, including the Trinity, the nature of the pre-incarnate Christ, free will, evil and demons, the life and practice of Christians, the nature of the soul, and the resurrection. King has analyzed and summarized the theological beliefs of Ignatius from Tatian's Address to the Greeks, his sole extant work that personally discusses his beliefs. Robert Alan King is an ordained minister through Calvary Chapel.