Title
Steganographia : books I, II, III & IV / by Johannes Trithemius abbot of Spanheim ; edited by Dr Stephen Skinner & Daniel Clark.
Summary
"Written in 1500 by Johannes Trithemius, the teacher of Cornelius Agrippa and Paracelsus, the Steganographia is a famous text about the evocation of spirits and the cryptography associated with them. In 1976, Books I and III were partially published in English, but never have all four books been published in English--until now"--Amazon.com