You probably need to research a workshop building. Don't build them unless you have captured the relevant province. I am a newbie but I made it to the Iron age, so I had to learn a few things along the way. How to do workshops is one of the things that newbies learn soon after getting well into the Bronze age.
In the forth Bronze age research colum towards the bottom, you can research the mason and wood techs. After that if you have wood or stone or marble resource from a provence that you have captured and you have the room and pop. then you can build the relevant workshop.