In Aion you have the freedom of being able to learn every single type of craft, no matter what character choices you make. The only limitation being that each character can only master two of them. Which ones you choose to master might depend on if your main goal is to sell to others for a profit, or what type of character you are playing.
If your goal is to be a salesman, I recommend reading our [Aion Kinah Guide - Professions] to see which crafting skills are best suited for making a living in the game.
Now, depending on if you are Asmodian or Elysian, here’s what you’ll need to do first to start honing your crafting skills:
For Asmodae, go to Pandaemonium, then the Temple of Artisans. Once there, speak to the appropriate non player controlled character to learn the different crafts: