I learned things like: “always introduce a figure from left to right” (the other way around make it seem as if they are leaving or it must be intentional of course), “be good or be poor” and “a good story makes any art sell”.
I was surprised we even learned some marketing strategy and that if things go bad on the economy, artists are one of the first to get hit because art is a luxery.
Six years of Commercial Art classes. Went Freelance, Sold TWO signs in as many years. But then the South US is not a good place to try to live on art in the first place. Many years later I’m back and doing 3D just for fun.