Bernard,

The letters of St. Bernard of Clairvaux

newly translated by Bruno Scott James

Dante and the Mystical Tradition: Bernard of Clairvaux in the Commedia (Cambridge Studies in Medieval Literature)

Steven Botterill

Western mysticism: the teaching of SS. Augustine, Gregory, and Bernard on contemplation and the contemplative life

Cuthbert Butler.

Bernard of Clairvaux on the life of the mind

by John R. Sommerfeldt.

Medieval Images of Saint Bernard of Clairvaux

James France

Goad and Nail (Studies in Medieval Cistercian History, No 10)

E. Rozanne Elder

Parables: Bernard of Clairvaux's Mapping of Spiritual Topography (Brill's Studies in Intellectual History)

Mette Birkedal Bruun

Pathway of Peace: Cistercian Wisdom According to Saint Bernard (Cistercian Studies Series)

Charles Dumont

Bernard of Clairvaux: On the Spirituality of Relationship

John R. Sommerfeldt

Bernard of Clairvaux: Studies Presented to Dom Jean Leclercq (Cistercian Studies : No 23)

Jean Leclercq