John Cassian was a medieval Christian monk whose mystical texts are still widely read and praised by the Christian church, and his works were also influential in bringing Egyptian culture to Western Europe.
The Institutes
Prey Seven Tales of Beastly Terror
Teachings on the Spiritual Life
How to Focus A Monastic Guide for an Age of Distraction
Teachings of St. John Cassian
Conferences of John Cassian No. 2
Teachings of Saint John Cassian
The conferences of John Cassian (Cistercian studies series)
The Works of John Cassian
Conferences of John Cassian, (Conferences I-XXIV, Except for XII and XXII)
Making Life a Prayer Selected Writings of John Cassian