Fr. Donald Calloway, MIC, a prominent Marian priest, exhibits an unmistakable zeal for the priesthood and devotion to Our Lady. He is a well-known conference speaker on Divine Mercy and the Blessed Virgin Mary. He speaks passionately about these topics in his moving conversion story. He is the editor of two books: The Virgin Mary and Theology of the Body and The Immaculate Conception in the Life of the Church. He has also authored seven books: Purest of All Lilies: The Virgin Mary in the Spirituality of St. Faustina, No Turning Back: A Witness to Mercy, Under the Mantle: Marian Thoughts from a 21st Century Priest, Marian Gems: Daily Wisdom on Our Lady, Mary of Nazareth: The Life of Our Lady in Pictures, Rosary Gems: Daily Wisdom on the Holy Rosary, and Champions of the Rosary: The History and Heroes of a Spiritual Weapon.