Johannes Trithemius - Wikipedia
- Biography and related links.
- http://en.wikipedia.org/wiki/Johannes_Trithemius

Heavenly Intelligences
- Trithemius explains the history of the world according to the cycle of the Planetary Angels or Heavenly Intelligences.
- http://www.renaissanceastrology.com/heavenlyintelligences.html

Johannes Trithemius
- Biography and introduction to Trithemius' astrology, magic and philosophy.
- http://www.renaissanceastrology.com/trithemius.html

Steganographia, by Johannes Trithemius
- English introduction with the main body in the original Latin.
- http://www.esotericarchives.com/tritheim/stegano.htm

Johannes Trithemius (1462-1516)
- Three online texts from the Twilit Grotto Esoteric Archives.
- http://www.esotericarchives.com/esoteric.htm#tritem

Wigand Wirt
- Critic of Trithemius. From the Catholic Encyclopedia.
- http://www.newadvent.org/cathen/15661a.htm

Dietrich Gresemund
- Associate of Trithemius. From the Catholic Encyclopedia.
- http://www.newadvent.org/cathen/07028a.htm

Tertullian : MSS Known to Trithemius in 1492
- Academic discussion of Trithemius on Tertullian.
- http://www.tertullian.org/witnesses/trithemius.htm

Cracking a Medieval Code
- From Science News Online, Ivars Peterson's MathTrek (5/2/98).
- http://www.sciencenews.org/sn_arc98/5_2_98/mathland.htm

John Trithemius
- A descriptive article from the Catholic Encyclopedia.
- http://www.newadvent.org/cathen/15062a.htm

Researchers Debunk Legendary Black Magic Manual
- Explores the cracking of the Steganographia. Attempts to disprove the text as magical and show it is actually cryptography.
- http://sightings.com/ufo/blackmagick.htm