A Greek god merges with an Egyptian one, gains a strange triple-superlative title, and ends up credited with writings spanning philosophy, astrology, medicine, and alchemy. Hermes Trismegistus is the legendary Greco-Egyptian sage formed from the identification of the Greek god Hermes with the Egyptian god Thoth. The long version explains why a figure nobody can pin down historically became one of the most quoted names in Western esoteric thought, from the temples of Roman Egypt to the printing presses of Renaissance Florence.
Hermes Trismegistus never had a birth certificate, a tomb anyone can point to, or a single confirmed biography. He is, instead, a name attached over centuries to a growing body of texts. Understanding him means understanding how ancient cultures blended gods, how texts get attributed to famous names, and how a scholarly mistake in the fifteenth century shaped four hundred years of European thought.
Who Is Hermes Trismegistus? Origins of the Name
Hermes Trismegistus emerged in Hellenistic Egypt, the period after Alexander the Great’s conquest in 332 BCE, when Greek and Egyptian populations lived side by side under Ptolemaic rule. Greek settlers looked at the Egyptian god Thoth, the ibis-headed deity of writing, wisdom, and magic, and recognized their own messenger god Hermes in him. Both gods governed language, knowledge, and the boundary between the human and divine worlds. The identification was almost automatic.
Thoth had already carried enormous prestige in Egyptian religion for thousands of years. He was credited with inventing hieroglyphic writing and with recording the judgment of souls in the afterlife. The Egyptologist Wallis Budge, whose analysis the theosophical scholar G. R. S. Mead leaned on heavily in his 1906 study of the Hermetic literature, called Thoth’s character “a lofty and beautiful conception,” describing him as the personification of the Mind of God, the pervading and directing power of heaven and earth. When Greek speakers folded that figure into Hermes, they inherited centuries of accumulated religious authority and attached it to a name Greek readers already recognized.
The result was a hybrid deity, sometimes called Hermes-Thoth, worshipped especially at Khmun, a city called Hermopolis by the Greeks and known in Egyptian tradition as the City of the Eight. Over time this composite god stopped being purely divine in the popular imagination. Writers began speaking of him as a sage, a lawgiver, even a historical teacher who had lived among mortals and left behind wisdom in written form.
What Does “Trismegistus” Mean?
Trismegistus is Greek for “thrice-greatest”, making Hermes Trismegistus literally “Hermes the Thrice-Greatest”. Where exactly the title came from kept scholars arguing for more than a century, and the argument itself is worth walking through, because it shows how classical philology actually works.
The trilingual Rosetta Stone, carved in honor of Ptolemy Epiphanes around 196 BCE, calls Hermes “the great and great,” a doubled superlative rather than a tripled one. For a long time this was cited as proof that “thrice-greatest” was a much later coinage, since the earlier inscription supposedly stopped at “twice.”
Mead pushed back on that reading. He pointed to a Latin epigram by the poet Martial, writing around 90 CE in praise of a champion gladiator who happened to be named Hermes, that closes with the line “Hermes omnia solus et ter unus,” roughly “Hermes alone possesses everything, and is three in one.” A joke like that only lands if the audience already recognizes “Trismegistus” as a household term, which pushes the title’s currency back well before Martial’s own lifetime.
The strongest physical evidence came later still, from a demotic Egyptian papyrus published by the scholar F. Ll. Griffith in 1900. The document, datable to around 46 CE, describes Thoth as “the Eight-times-great,” a title never before found in Egyptian writing. The papyrus itself is documented evidence, while the interpretation that follows is more speculative.
Griffith and Mead connected the title to Khmun’s identity as the City of the Eight, home of the Ogdoad, the sacred grouping of eight primeval deities, and proposed that “eight” represents a doubling progression, greatest becomes twice-greatest becomes eight, which is two cubed, or three doublings of “great.” That arithmetic is Griffith and Mead’s proposed explanation for how “eight-times-great” and “thrice-greatest” connect, not an equation Egyptologists treat as settled. What the papyrus does establish beyond dispute is that intensified, superlative titles for Thoth existed in genuine Egyptian usage well before the Greek term became common, which is enough on its own to rule out the idea that “Trismegistus” was invented from nothing by later Greek or Roman writers.
Was Hermes Trismegistus a Real Person?
Hermes Trismegistus was not a single historical person but a legendary Greco-Egyptian figure under whose name many different authors wrote over several centuries. Such attribution was common in the ancient world, where attaching a text to a revered figure gave it an authority its actual, often anonymous, author could never claim on his own.
Think of it less like a forged signature and more like a genre label. When ancient readers picked up a Hermetic dialogue, they understood “Hermes” as shorthand for a certain kind of revealed wisdom, not necessarily as a claim that a specific man dictated those exact words. The texts themselves span roughly the first three centuries CE. Written in Greek by different hands in Roman Egypt, they show inconsistencies in doctrine and style that a single author would be unlikely to produce.
This does not make Hermes Trismegistus a fraud in the modern sense. It makes him what historians of religion call a pseudepigraphic figure. The historical reality lies in the tradition itself: the ongoing conversation between teacher and student figures preserved across these texts.
An Ancient Precedent: Manetho’s Letter and the Three Hermes
Long before Islamic scholars developed their own layered account of multiple Hermes figures, a similar idea was already circulating in the Hellenistic world, preserved through a curious chain of quotation. The Byzantine chronicler Syncellus, writing centuries later, quotes a document called the Book of Sothis, attributed to Manetho, the Egyptian priest who compiled a history of the pharaohs for Ptolemy II in the third century BCE. In it, Manetho supposedly explains to the king that Egypt’s sacred knowledge had passed through three stages.
The first Thoth, identified with the divine Agathodaimon, engraved the original teachings in the sacred language of remote antiquity on stone monuments before a great flood. After the flood, a second figure, called Hermes and described as the son of the first, translated these into a later form of the language and stored them as books inside temple chambers. A third figure, Tat, inherited and further transmitted this material down to Manetho’s own priestly generation. If genuine, this letter contains the earliest known use of the title “Thrice-greatest” in surviving Greek literature, predating the Corpus Hermeticum itself by roughly two and a half centuries.
Whether the Book of Sothis is authentic or a later forgery attributed to Manetho remains disputed, and it has stayed disputed. Mead argued for its plausibility in 1906, and the case was not left to rest there. More than a century later, the historian Christian H. Bull revisited the same letter in a 2018 academic study and argued, independently and on different grounds, that it likely served as the genuine preface to Manetho’s history of Egypt written for Ptolemy II. The authenticity question remains open, with modern scholarship providing arguments beyond Mead’s earlier defense of the document.
Whatever the final verdict on its authenticity, the letter preserves a striking pattern of transmission. This three-stage succession closely mirrors the later Arabic tradition of three Hermes figures: one antediluvian, one who rebuilt knowledge after a flood, and one connected to Egypt and alchemy. Two cultures, separated by roughly a thousand years and writing in different languages, arrived at strikingly similar ways of organizing the same problem: how does timeless wisdom survive a catastrophe and reach the present?
The Hermetic Texts: Two Very Different Bodies of Writing
The Hermetica, the ancient texts attributed to Hermes Trismegistus, fall into two broad categories: philosophical Hermetica and technical Hermetica.
- Philosophical Hermetica: theological and metaphysical dialogues concerned with God, the cosmos, the soul, and how a human being can achieve gnosis, direct knowledge of the divine.
- Technical Hermetica: practical manuals on astrology, alchemy, magic, and natural science, written to be used rather than contemplated.
Clement of Alexandria preserves a striking glimpse of how broad the Egyptian tradition attributed to Hermes had become by Late Antiquity. Describing a priestly procession, he lists forty-two sacred books carried by different ranks of Egyptian priests, including hymns, royal records, four astrological books, and ten hieroglyphic works on cosmography, geography, temples, and ritual administration. Clement’s account shows that “Hermes” already covered an entire priestly universe of knowledge, far broader than the Corpus Hermeticum.
The Corpus Hermeticum, a collection of seventeen Greek treatises, represents the philosophical branch. The count itself carries a small quirk worth knowing. Modern editors, following the numbering fixed by Nock and Festugière in the 1940s, run the treatises from I through XVIII, but there is no treatise XV.
The gap traces back to the French editor Adrianus Turnebus, who in his 1554 printed edition inserted an entry from the Byzantine Suda encyclopedia along with three short Stobaeus excerpts and numbered that inserted material XV. Later editors dropped that material as spurious but never renumbered the treatises that followed it, so XVI, XVII, and XVIII, genuine Greek Hermetic texts in their own right, kept their original numbers with a gap where XV used to be.
The standard numbering therefore preserves seventeen texts under eighteen numbers, with XV remaining absent. Alongside it stands the Asclepius, a Latin dialogue, originally composed in Greek, now largely lost in that language, that covers similar theological ground with more attention to ritual and the created world. A third major source consists of fragments preserved by the fifth-century anthologist Stobaeus, including roughly forty additional excerpts that never made it into the standard Corpus, some quite substantial, including the long text scholars call the Korē Kosmou, the Virgin of the World.
Coptic evidence broadens the picture further. Nag Hammadi Codex VI preserves three Hermetic texts, including two passages related to the Asclepius and the Discourse on the Eighth and Ninth, showing that Hermetic material circulated beyond Greek and Latin audiences and entered Coptic-speaking religious culture as well.
These philosophical works are structured as dialogues, built around exchanges between Hermes and his students.
Hermes the Teacher: Poimandres and His Students
Hermes Trismegistus serves as the central teacher and revealer of the philosophical Hermetica, the texts at the heart of ancient Hermeticism. In the opening treatise of the Corpus Hermeticum, Hermes receives a vision from a divine being, Poimandres, who explains the creation of the cosmos, the fall of the primal Man into matter, and the path back to divine union through knowledge. Hermes then takes on the role of the one who received revelation and now transmits it onward, becoming the teacher rather than the student for the remainder of the corpus.
Poimandres is not the only form this higher source of revelation takes across the wider Hermetic tradition: other texts present Agathodaimon or Nous itself as the divine intelligence from which Hermes receives gnosis.
Three figures recur most often as his interlocutors across different treatises. Tat, described as Hermes’s son, appears in dialogues focused on regeneration and the difficulty of grasping divine truth through ordinary reasoning. Asclepius, a separate figure from the Greek god of medicine but carrying the same name, takes part in discussions of cosmology and the nature of the created world, and lends his name to the Latin dialogue mentioned above.
Ammon appears in a smaller number of texts, where he carries royal or priestly authority and is usually placed within political or sacred settings rather than purely metaphysical discussions.
None of these three names should be mistaken for historical disciples. Their exchanges also reproduce the graduated instruction typical of ancient philosophical schools. Mead notes an odd resonance here worth mentioning briefly. In the Asclepius, Hermes gathers his three main disciples together and calls the four of them, teacher and students, a “sacred group of four.”
Anyone raised on the Gospels might recognize the shape: a master with an inner circle of three, each with a different emphasis, one closer to knowledge, one to authority, one to love. Whether that resemblance reflects a shared cultural pattern in how ancient teacher-disciple stories got told, or something closer to direct influence, is a question Mead raises without fully resolving, and it remains an open one.
Beyond Tat and Asclepius: A Wider Cast of Disciples
Tat, Asclepius, and Ammon are the names most readers of the Corpus Hermeticum encounter, but the broader Trismegistic literature, especially the fragments preserved by Stobaeus, includes several other teacher-student pairings that rarely make it into popular summaries.
In a surviving quotation, Osiris appears as a disciple of Agathodaimon, addressing his teacher directly and asking how the whole of the earth first came into being. The scene mirrors the Poimandres structure but shifts the cast entirely.
That teacher-student pairing is directly attested in the fragment itself. A further step ties Agathodaimon to the ram-god Chnum of southern Egypt. Some scholars have proposed this identification, although the Hermetic texts do not state it outright and specialists continue to debate it. Isis, described in this material as the ancient Lady of Wisdom and teacher of all magic, receives instruction from the most ancient Hermes through what the texts describe as direct spiritual vision, and she in turn instructs her son Horus and, in at least one fragment, a king generally identified as Ammon.
A separate strand connects Hermes to the semi-legendary Egyptian astrologers Petosiris and Nechepso, whose astrological writings circulated widely in the Hellenistic world and were frequently grouped alongside Trismegistic material by later authors such as the fourth-century writer Firmicus Maternus. Firmicus lists Hermes, an Egyptian deity called Chnubis, Petosiris, and Nechepso together as a chain of transmission, each passing astrological and cosmological knowledge to the next. The surviving sources reveal an ancient cast of characters much wider than the three names modern readers usually meet.
What Did Hermes Trismegistus Teach? God, the Cosmos, and the Human Soul
Hermetic theology centers on a single, transcendent God, sometimes called simply “the One” or “the Good,” from whom the entire cosmos emanates. Divine mind, called Nous, mediates between that God and creation, and human beings carry some portion of Nous within them.
What the texts do not offer is one settled verdict on the body and the material world. Some treatises take a harsh view, describing the body as a drag on the soul and matter as close to evil. Others, including the fifth treatise of the Corpus, describe the cosmos itself as beautiful and good, a visible expression of God rather than a prison to escape. Scholars have long noted this split, sometimes labeling the two moods pessimistic and optimistic strands within the same collection. Reading the Hermetica as a single uniform doctrine flattens a real internal disagreement among its authors.
Ignorance, in Hermetic thought, is the root problem of human existence, not sin in the Christian sense. A person who does not know their own divine origin remains bound to bodily desire and mortality. Knowledge, or gnosis, breaks that bondage. The Poimandres describes this process as an ascent, the soul passing back up through planetary spheres, shedding the qualities each sphere imposed on it during descent, until it rejoins the divine source.
This idea of spiritual rebirth appears explicitly in one treatise, the thirteenth of the Corpus, where Tat asks Hermes how a man can be born again, and Hermes describes a transformation available through direct instruction and inner discipline rather than ritual alone. The resulting system shares features with Platonism and certain strands of early Christian and Gnostic thought. The philosophical Hermetica developed in the same intellectual environment as Middle Platonism, Stoicism, and Jewish and Christian theology, all mixing in Roman-era Alexandria and its surrounding culture.
Astrology, Magic, and Medicine: The Technical Hermetica
Alongside the philosophical dialogues, other texts bearing Hermes’s name addressed practical concerns. Astrology owes some of its ancient authority to Hermetic attribution, particularly the doctrine of the decans, the thirty-six divisions of the zodiac, each ruled by its own spirit and linked to specific bodily organs and remedies in Hermetic medical astrology.
The primary evidence here is the body of Greek magical papyri unearthed in Roman Egypt and published in scholarly editions from the late nineteenth century onward, commonly abbreviated PGM. The papyri themselves invoke Hermes repeatedly under several distinct titles, revealing a figure whose identity varied across the surviving magical texts.
Mead translated and catalogued a series of these invocations from those primary editions: Hermes hailed as the Good Mind, as Lord Hermes, and as the Spiritual Light, alongside a lengthy ritual called the Mystic Rite of the Flame, complete with an opening summons, a stronger form to use if the ritual flame dies down, a greeting for when the god’s presence is felt, and a formal farewell. These are working liturgies, not literary dialogues, meant to be spoken aloud by practitioners seeking protection, divination, or healing.
Medical and botanical texts attributed to Hermes catalog the properties of plants, stones, and animal parts, tying natural remedies to a system of astrological timing in which picking an herb at the wrong hour under the wrong planet supposedly weakened its power. This technical strand rarely overlaps with the theological concerns of the Corpus Hermeticum. A reader who knows only the philosophical dialogues can be surprised to discover that the same name attaches to horoscope manuals and magical charms. Ancient audiences apparently saw no contradiction. Hermes governed both revealed wisdom and applied craft, and both counted as forms of hidden knowledge worth guarding under his authority.
Did Hermes Trismegistus Write the Emerald Tablet?
Hermes Trismegistus did not historically write the Emerald Tablet, although the text was attributed to him by later tradition. Alchemy represents a third strand, related to but distinct from both the philosophical and the astrological-magical Hermetica, and it developed largely after the classical period. The most famous alchemical text bearing Hermes’s name is the Emerald Tablet, a short set of cryptic statements about the unity of the material and spiritual worlds, including the phrase most people know even without knowing its source: as above, so below.
The Emerald Tablet did not come from the Corpus Hermeticum and does not appear in any Greek philosophical Hermetic manuscript. Its earliest known versions are Arabic, found in works such as the Book of the Secret of Creation, compiled somewhere between the late eighth and early ninth centuries and attributed to a figure called Balinas, often identified with Apollonius of Tyana. Latin translations spread across Europe from the twelfth century onward, and generations of alchemists, including Isaac Newton centuries later, studied and annotated the text.
The Golden Tractate of Hermes Trismegistus, another alchemical work that circulated widely in medieval and early modern Europe, illustrates how much later material got folded under Hermes’s name.
It describes the alchemical process through symbolic stages, discussing prime matter, the role of Mercury as both a metal and a philosophical principle, the sequence of colors alchemists tracked during the Great Work, and the pursuit of the Philosopher’s Stone said to transmute base metal into gold and confer longevity. None of this vocabulary appears in the Corpus Hermeticum. Later commentators layered a spiritual reading onto alchemical transformation, but the philosophical and alchemical traditions grew up largely independent of each other before merging in popular imagination.
Hermes in the Islamic World
Hermetic material did not vanish after the classical period. It traveled east into the Arabic-speaking world well before it returned to Latin Europe, and Muslim scholars absorbed and expanded on it in ways that shaped astrology, alchemy, and philosophy across the medieval Islamic world.
Arabic authors sometimes identified Hermes with Idris, a prophet mentioned in the Quran, and by extension with the biblical Enoch, another figure associated with hidden wisdom and ascent to heaven. Some Arabic sources describe not one but three Hermes figures, an antediluvian sage who built the pyramids and preserved knowledge before the flood, a post-flood teacher who revived science in Babylon, and a third figure connected to Egypt and alchemy specifically.
This triple-Hermes scheme shows how thoroughly Islamic scholars reworked the inherited material. As the earlier section on Manetho’s letter suggests, the pattern may also preserve traces of an older Hellenistic template.
Astrological and alchemical texts attributed to Hermes circulated widely among Arabic scholars from the ninth century onward, feeding into the broader translation movement that also preserved and transmitted Greek scientific and philosophical works. When Latin Europe later recovered Hermetic material, much of it, including the Emerald Tablet, arrived by way of Arabic intermediaries rather than directly from Greek sources.
The Renaissance Revival: Ficino, the Medici, and a Case of Mistaken Antiquity
The dramatic turning point in Hermes’s European reception came in 1460, when a Greek manuscript of the Corpus Hermeticum reached Florence. Cosimo de’ Medici, the city’s ruling patron and a collector of ancient texts, reportedly told the scholar Marsilio Ficino to set aside his ongoing translation of Plato and translate the Hermetic material first. Ficino complied, and his Latin version, often called the Pimander after the opening treatise’s title, appeared in print in 1471.
Ficino and his contemporaries believed Hermes Trismegistus had lived in remote antiquity, before or roughly contemporary with Moses, making him older than Plato and the wellspring from which Greek philosophy itself flowed.
This belief fit neatly into a broader Renaissance idea called prisca theologia, the notion of a single ancient theology given by God to humanity in the distant past and echoed, in fragments, across pagan philosophy, Jewish scripture, and Christian revelation. Under this framework, Hermes stood alongside Moses, Zoroaster, and Plato as one voice in a chain of primordial wisdom, and his supposed antiquity gave the Hermetic texts enormous philosophical authority.
That authority shaped a century and a half of European thought. Pico della Mirandola cited Hermetic ideas in his writings on human dignity, and Giordano Bruno drew on Hermetic material as one ingredient among several in his cosmological speculation before his execution in 1600 on broader heresy charges.
A strong version of this story, popularized by the historian Frances Yates in 1964, once held that Hermeticism drove Renaissance magic and helped trigger the Scientific Revolution outright, with Bruno as its central magus. Later scholarship has walked that causal claim back considerably. The narrower, better-supported point is that Hermetic and magical ideas were genuinely part of the intellectual furniture of early modern Europe, while their role in the emergence of modern science was far more limited than Yates proposed.
Isaac Casaubon and the Collapse of a Myth
In 1614, the French classical scholar Isaac Casaubon challenged the ancient dating of the Corpus Hermeticum by examining its Greek language and vocabulary. His analysis, published in a work on ecclesiastical history, dated the texts to the early centuries of the Roman Empire, several centuries after Plato rather than before him.
Casaubon’s conclusion did not sweep the field immediately. Scholarly opinion shifted over the following decades rather than overnight, and some readers went on defending the old dating, or simply ignored the philological argument, well into the later 1600s.
By the end of the seventeenth century, though, the case among serious scholars was effectively settled, even as popular and esoteric interest in Hermes continued well past that point. Modern dating, based on internal linguistic and philosophical evidence, places the philosophical Hermetica in roughly the second and third centuries CE and locates its production in a Greco-Egyptian milieu blending Platonism, Stoicism, and Egyptian religious symbolism rather than in the age of the pharaohs.
Two different questions are often conflated here. One is what the Hermetic texts actually say and where they came from historically. The other is what earlier readers believed about their origin. Casaubon answered the first question. He did nothing to diminish the intellectual content of the texts themselves, only their claimed pedigree.
From Occult Revival to The Kybalion: How the Modern Image Formed
Hermes Trismegistus did not disappear from Western esoteric culture after Casaubon’s dating took hold among scholars. Nineteenth- and early twentieth-century occult movements, including Theosophy and various Hermetic orders, revived interest in his name, often blending genuine ancient material with newer philosophical inventions. G. R. S. Mead, whose scholarly reconstruction supplies much of the historical detail in this article, worked squarely inside that revival himself, publishing his Prolegomena in 1906 as part of a project meant to give Theosophical readers a rigorously sourced account of the Trismegistic literature rather than a purely mystical one.
The single most influential modern text bearing Hermes’s name is The Kybalion, published anonymously in 1908 under the name “The Three Initiates” and widely attributed, at least in part, to the American writer William Walker Atkinson, a figure associated with the New Thought movement. The Kybalion presents seven supposed universal principles, including mentalism, correspondence, and vibration, framed as ancient Hermetic wisdom.
These seven principles do not appear anywhere in the Corpus Hermeticum, the Asclepius, or the classical technical Hermetica. The Kybalion borrows one genuine fragment, the phrase “as above, so below,” lifted from the Emerald Tablet, and builds an entirely new mentalist philosophy around it, one that reflects early twentieth-century American New Thought far more than second-century Alexandrian theology. Its influence on how modern readers imagine Hermetic teaching has been enormous, which makes it worth naming directly: if your image of Hermeticism centers on seven laws of the universe, that image comes from 1908 Chicago, not ancient Egypt or Roman Alexandria.
Separating the Historical Hermes from the Popular Legend
The historical Hermes Trismegistus differs sharply from the figure created by later legend and modern esoteric tradition.
- He was not a single identifiable Egyptian philosopher whose biography historians can trace. He is a name attached to a centuries-long, multi-author tradition, one that a letter attributed to the Egyptian priest Manetho, itself of disputed authenticity, already describes as passing through several distinct stages long before the Corpus Hermeticum existed.
- He did not personally write the Corpus Hermeticum, the Emerald Tablet, and The Kybalion as one continuous body of work. These come from different eras, different authors, and different cultural contexts, spanning close to two thousand years from the earliest securely dated Greek inscriptions honoring Hermes as “great and great” through the disputed letter attributed to Manetho to the American Kybalion of 1908.
Untangling these threads reveals a story far larger than any single biography: an Egyptian god merged with a Greek one, inherited centuries of scribal and priestly prestige, became a byword for hidden wisdom across Roman Egypt, got reinterpreted by Islamic scholars as a prophetic ancestor of science, returned to Europe as a supposed contemporary of Moses, lost that claim to a Swiss philologist’s careful reading of Greek vocabulary, and then got reinvented again by an Illinois occultist writing under a pseudonym in 1908.
Every stage of that story is documented, traceable, and, for the most part, verifiable against surviving manuscripts and scholarship. Hermeticism’s staying power reflects how many different traditions, Egyptian, Greek, Roman, Islamic, and modern Western esoteric, found something worth preserving under Hermes’s name.
References
- Bull, Christian H. The Tradition of Hermes Trismegistus: The Egyptian Priestly Figure as a Teacher of Hellenized Wisdom. Leiden: Brill, 2018.
- Copenhaver, Brian P. Hermetica: The Greek Corpus Hermeticum and the Latin Asclepius in a New English Translation, with Notes and Introduction. Cambridge: Cambridge University Press, 1992.
- Fowden, Garth. The Egyptian Hermes: A Historical Approach to the Late Pagan Mind. Cambridge: Cambridge University Press, 1986.
- Litwa, M. David. Hermetica II: The Excerpts of Stobaeus, Papyrus Fragments, and Ancient Testimonies in an English Translation with Notes and Introductions. Cambridge: Cambridge University Press, 2018.
- Mead, G. R. S. Thrice-Greatest Hermes: Studies in Hellenistic Theosophy and Gnosis. 3 vols. London: Theosophical Publishing Society, 1906.
- Nock, A. D., and A.-J. Festugière, eds. Corpus Hermeticum. 4 vols. Paris: Les Belles Lettres, 1945–1954.
- Salaman, Clement, Dorine van Oyen, William D. Wharton, and Jean-Pierre Mahé. The Way of Hermes: New Translations of The Corpus Hermeticum and The Definitions of Hermes Trismegistus to Asclepius. Rochester, VT: Inner Traditions, 2000.
- van Bladel, Kevin. The Arabic Hermes: From Pagan Sage to Prophet of Science. Oxford: Oxford University Press, 2009.
- Yates, Frances A. Giordano Bruno and the Hermetic Tradition. Chicago: University of Chicago Press, 1964.