Aganist Eunomious by Gregory of Nyssa
Lectures on the Christian Sacrements by Cyril of Jerusalem
Symeon the New Theologian's Ethics
On Fasting and Feasts by Saint Basil the Great
On the Apostolic Preaching: St. Irenaeus of Lyons
On the Holy Icons: St. Theodore the Studite
Three Treatises on the Divine Images: St. John of Damascus
Two Hundred Chapters On Theology: St. Maximus the Confessor
On the Holy Spirit by Didymus the Blind
On the Holy Spirit: St. Basil the Great
On the Human Condition: St. Basil the Great
The Desert Fathers: Sayings of the Early Christian Monks edited by Bendicta Ward