This is the most completely comprehensive work I have ever seen on Mysticism; It's essentially a graduate
course under a single cover! Focused primarily on Christian
Mysticism, it includes references to non-Christian mystic authors. Aside from a very detailed treatment of the
Mystic Way, it speaks at length about the relationships between mysticism and psychology, theology, and magic.
Especially valuable is the historical sketch of mystic thought and the exhaustive bibliography of the writings of
most of a major figures in mysticism.
Bruce Janz - Who's Who in the History of Mysticism