Enochian Magic: A Practical Manual: The Angelic Language Revealed (Llewellyn's high magick series)
Gerald Schueler and Betty Schueler have authored five other books on Enochian magick.  They have also coauthored many articles on anthropology, computers, children, dogs, philosophy, magic and Theosophy.  Gerald is a retired systems analyst and Betty is a computer consultant.Gerald J. Schueler, Ph.D. born in Darby Pennsylvania, and his wife Betty Sherlin Schueler, Ph.D. born in Washington DC, currently reside in Maryland. Jerry is a retired systems analyst, free-lance writer, editor, and artist. Betty is a computer consultant, free-lance writer, editor and artist. The Schuelers have co-authored many articles on anthropology, computers, dogs, philosophy, science, magick, and other subjects.