Nobody can study everything. The Octovium alone is eight full disciplines in original editions, the ten schools each have eight degrees, and there are seventy more schools after that. So the question isn't whether you specialise — it's how you decide where your attention goes, and the answer here is a Wizardly Trade.
A trade is the general operations and skills a wizard develops over a life, and it determines their specialisation and line of work.1 But the definition given is unusually personal for a curriculum item: a trade is the wizard's main field of interest, the topics they're most passionate about, the ones that matter most to them magically. All wizards have an innate love of magic, and not all have the same interests — some care more about stars and planets, others about the outer planes, the creatures of the magical realms, the celestial worlds, or healing. So the sorting principle is enthusiasm rather than aptitude or assignment. What you're drawn to is what you study more of, and studying more of it is what makes you an expert in it.
The most important thing about a trade is stated twice, in different words, because it would otherwise be easy to misread. Belonging to a trade doesn't mean the wizard can't do anything else, including work belonging to another trade. It means they focus more on subjects relating to their own, and they can still take up outside subjects if the proper training and precautions are taken.2 And rather than constricting a wizard into an appointed task, the trades exist to give an apprentice a sense of direction, magical identity and guidance.
Each of those three gets defined. Direction is the amount of concentration given to a particular field — a Diviner has to study far more astronomy and astrology than others do. Magical identity is the subjects a wizard most enjoys inside magical study. Guidance is the body of work already prepared in that field by others, which lets a wizard self-guide through the trade and gain the experience to become an expert.3 That third one is doing something practical. A trade isn't only a label for what you like; it's a pointer to whose work you should be reading, which matters enormously in a system whose reading rule is originals only.
The list runs to twenty-two, and it's worth having in full because most of them are named once and never explained.4 Abjurer. Alchemist. Arcanist. Artisans. Astrologer. Bestiologist. Chronist. Conjurer. Diviner. Dracomancer. Healer. Hierophant. Invoker. Kabbalist. Magus. Mentalist. Naturancer. Planemaster. Praetor. Runecaster. Templar. Thaumaturgist.
Ten of those get a description, and they're the ten an apprentice is told to focus on: the Arcanist, the Bestiologist, the Conjurer, the Diviner, the Healer, the Kabbalist, the Magus, the Planemaster, the Praetor and the Templar. The other twelve exist as names with a suggested line of study beside them and nothing more. And even the ten come with a disclaimer: the descriptions are by no means absolute or complete, and anyone should feel free to add to or expand the subjects of study for each trade.5 The types of trade in the magical world are called so many it's staggering, and this is the general set.
How trades arose gets the same shape of account the schools got, and the two are worth putting side by side. Schools were assembled by Academic Wizards cataloguing existing incantations by effect. Trades are described as the result of the pursuit and specialisation of magical schools, ritualistic works, ethical viewpoints or systems of belief on the part of individual wizards and their interests.6
So the two structures come from opposite directions. A school is a sorting of the material by what it does. A trade is a sorting of the people by what they went after. That's why a trade can be non-binding while a school's degree ladder is strict — one describes a body of work and the other describes a habit of attention.
There's a sequencing claim buried in the middle of the section, and it inverts what you'd expect. The skills needed to perform these general tasks are gained early on, during the apprentice's training period. Later, with dedication and care, those skills become the wizard's areas of expertise.7
The skills come first and the specialisation forms out of them — you don't choose a trade and then acquire its skills, you acquire a general set and then discover which of them you've been deepening. That's consistent with the enthusiasm-based sorting, and it explains why the trades are non-binding: nothing was ever gated behind the choice, because the choice is a description of what happened rather than a decision that opened a door.
It also fits the curriculum's actual shape. The ten school drills are one exercise at eight sites. The Octovium is eight disciplines everybody studies. Everything an apprentice does before choosing a trade is general, and the trade is what the general training turned into once a particular interest kept pulling.
So a beginner asking "which trade should I pick?" has asked a question the system doesn't answer. There is nothing to pick yet.
There's no procedure given, no test, no initiation, and no point at which a trade is conferred. What the section supports is closer to noticing than to deciding. Do the general work first. The eight disciplines, the furnace exercise, the school drills. All of it is shared, none of it belongs to a trade, and the skills you build there are the raw material every trade is made from.
Watch which subjects you keep going back to. Magical identity is defined as the topics you enjoy most, and the whole sorting principle is interest rather than talent. The trade is downstream of what you were already reading anyway.
Then let it set the reading list. Once a direction is visible, the trade tells you where to concentrate — more astronomy for a Diviner, more planar cosmology for a Planemaster — and it points you at the work others in that trade have already done. And treat the boundary as porous. Work outside your trade is explicitly allowed with proper training and precautions, so nothing here forecloses anything. The trade is a centre of gravity rather than a fence.
The trades and their list are asserted with no tradition named and nothing quoted. This is the Eldest Tradition warrant on the source stub. 🚩 SINGLE SOURCE.
🚩 Several of the twenty-two names appear to be coinages — Naturancer, Dracomancer, Chronist — sitting alongside real historical terms like Hierophant, Thaumaturgist and Magus. The mixture is not distinguished.
Twelve of the twenty-two are named and never described, each with only a suggested line of study beside it in the table. What they involve is not established in the range read.
The claim that a wizard may work outside their trade "if the proper training and precautions are taken" names neither the training nor the precautions.
Follow the non-binding rule and a trade costs nothing. It constrains no operation, closes no door, and can be crossed with preparation. On that reading a trade is a label for a tendency, and a wizard could reasonably ignore the whole system.
Follow the direction claim and a trade is expensive. A Diviner must study much more astronomy and astrology than others — and in a curriculum where the reading is original works only, and where eight background disciplines already demand years, "much more" of anything means much less of something else. The concentration a trade asks for is paid for out of the same finite attention.
So a trade is simultaneously free and costly, and only the first half of that is ever stated. In a system this large, choosing where to concentrate is choosing what to never get to.
Create a Niche, Do Not Pick One — Both are answering the same question — how does a person decide where to concentrate — and both refuse the obvious verb. The business material is explicit about it: notice that I didn't say pick a niche, because the instruction is to create one. A niche you select from a list is a slot somebody else defined; a niche you make is yours.
This system arrives at a similar place from the other end. The twenty-two trades look like a list to pick from, and then the framing quietly dismantles that. The skills come first and the trade forms out of them. The descriptions are "by no means absolute or complete" and anyone should feel free to add to them. Nothing is gated behind the choice.
Set side by side, the two show the same insight and only one of them names it. A specialisation that arrives by selection is a category you fit yourself into; one that arrives by accumulation is a shape your own attention left. The difference matters most for a beginner, because a list invites choosing on day one and both systems say that's the wrong day — the business version says so outright, and this one says it by making the choice unnecessary and then never telling you that you can stop worrying about it.
Sharpest implication. You don't choose a trade and then learn its skills. The skills come first, in general training, and the trade is what those skills turned into once a particular interest kept pulling — which is why the trades bind nothing, and why a beginner asking which one to pick has asked a question with no answer yet.
Generative questions.