Crafthalls are establishments that maintain Pernese knowledge and skills.
A Crafthall may be of any size, but typically, the largest Crafthall is recognized as being the center of knowledge and learning within the craft.
They are very similar to medieval German Zünfte (Singular Zunft) up to the three-pronged hierarchy of Apprentice, Journeyman (Bachelor) and Master as well as protectiveness about craft secrets.