I've scoured the internet for information on this, but everything that I've been able to find is either about crafts or arts in general at best, and generally uninformative Youtube videos at worst. I'm extremely curious about the specifics of how smiths worked, what kind of things apprentices would be doing as opposed to journeymen/masters, and of course how they actually made the products of their crafts. I'd even be willing to read primary sources, if there are any publicly accessible ones.

Edit: In fact, either my google-fu needs some practice, or I can't find any comprehensive histories on blacksmithing anywhere. Everything is either post-Industrial Revolution or a contemporary guide on the practice of smithing today. So really, anything pre-Industrial on the topic would help.