The Texts
Corpus Hermeticum
Seventeen Greek treatises written in Egypt around 100–300 CE, compiled into one book in Byzantium, translated in 1463, and misdated for 150 years. There is no lost “Book XV” — the gap is an early-modern editing artifact.
The Corpus Hermeticum is not a book anyone wrote. It’s an anthology: seventeen short treatises by different, anonymous authors, composed in Greek in Roman Egypt and gathered — probably in Byzantine hands, first attested with the philosopher Michael Psellos in the 11th century — into the collection that reached Florence in the 1460s.
What’s inside
Dialogues, sermons and hymns on the big questions: where the cosmos comes from, what mind (nous) is, how the soul descends and ascends, what it means to be reborn in knowledge. Treatise I (Poimandres) opens with a cosmic vision; treatise XIII stages a mystery of rebirth in which ten divine powers drive out twelve zodiacal torments — liberation from astrology, argued in astrology’s own categories.
The missing Book XV
Editions number the treatises I–XIV and XVI–XVIII. The “missing” XV is no suppressed secret: an early editor inserted extra material as XV, later editors removed it, and the numbering stuck. Four centuries of conspiracy theories rest on a pagination decision.
A short history of misreading
Renaissance Europe believed the Corpus was primordial wisdom older than Plato. In 1614 Isaac Casaubon showed on linguistic grounds that the Greek was late antique. He was right about the dates — and yet the 1945 Nag Hammadi finds proved the texts carry genuinely Egyptian religious material. Both things are true; that double truth is the modern study of Hermetism.
How to read it
The scholarly standard in English is Copenhaver’s Hermetica (1992), completed by Litwa’s Hermetica II (2018). The free translations that dominate the internet — Everard (1650) and Mead (1906) — are historical documents in their own right, made before the modern critical text; read them knowingly, not naively.
| Contents | 17 Greek treatises (I–XIV, XVI–XVIII) |
|---|---|
| Composed | c. 100–300 CE, Roman Egypt |
| First attested as a collection | Michael Psellos, 11th c. Byzantium |
| Latin translation | Marsilio Ficino, 1463 (printed 1471) |
| Redated | Isaac Casaubon, 1614 |
| Standard English | Copenhaver 1992 · Litwa 2018 |
Fair questions
Is the Corpus Hermeticum 'the Hermetic bible'?
No — it was never a canon. It's one surviving anthology among several bodies of Hermetic writing (Asclepius, Definitions, fragments, technical treatises).
Is the Emerald Tablet in it?
No. The Emerald Tablet is a separate, much later text, first attested in Arabic in the 8th–9th century.
Which treatise should I read first?
Poimandres (I) — then IV (the mixing-bowl of mind), X, XI and XIII. Our guided reading starts with Poimandres.
Listen & watch
- SHWEP podcast: the Hermetica series (episodes 102+)Earl Fontainelle · heavily footnoted
A caution: the most-viewed Corpus audiobooks on YouTube read modern copyrighted translations without authorization — we don’t link them. The readings above use public-domain texts.
Sources & further reading
- Copenhaver, Hermetica (Cambridge, 1992).
- M. David Litwa, Hermetica II (Cambridge, 2018).
- Research dossier: ancient-texts.md §1 (full manuscript history and translation table).
Read the opening vision → Poimandres