Can writing be taught?

Sometimes people ask whether writing can be taught. I'm in the "yes" camp on that, although perhaps that is a qualified yes because I'm not sure everyone defines "teaching" the same way. I think there are three main ways in which I've been taught:

Reading taught me how to write. First and foremost, I learned to write from reading. This is generally how we learn to use language: by imitating others, then by absorbing the rules of our language, its idioms, its structures, its color and flavor...