Christian Spirituality I

1986

The Flowering of Mysticism

Men and Women in the New Mysticism: 1200-1350

1998

Meister Eckhart and the Beguine Mystics

Hadewijch of Brabant, Mechtild of Magdeburg, and Marguerite Porete

2014

Visions of the End

Apocalyptic Traditions in the Middle Ages

1979

Apocalyptic Spirituality

1979

The Essential Writings of Christian Mysticism

2006

Antichrist

Two Thousand Years of the Human Fascination With Evil

1994

The Growth of Mysticism

Gregory the Great Through the 12th Century

1994

The Foundations of Mysticism

Origins to the Fifth Century

1991

Early Christian Mystics

The Divine Vision of Spiritual Masters

2003

The Golden Chain

A Study in the Theological Anthropology of Isaac of Stella

1972

Doctors of the Church

Thirty-Three Men and Women Who Shaped Christianity

1999

The Harvest of Mysticism in Medieval Germany

2005

Thomas Aquinas's Summa theologiae

A Biography

2014

The Mystical Thought of Meister Eckhart

The Man from Whom God Hid Nothing

2001

The Encyclopedia of Apocalypticism

Volume 1: The Origins of Apocalypticism in Judaism and Christianity

2000

The Varieties of Vernacular Mysticism

1350–1550

2012