The craft of writing words that sell. Not storytelling, persuading.
Copywriting is writing designed to drive a specific action. It's the headline that makes someone click, the email that makes them open, the sales page that makes them buy. Good copy reads like one friend talking to another about something important. It doesn't sound 'written.' It feels natural, but every word is there on purpose.
Whatever business you're in, you'll need to write words that make someone do something. An email, a page, a text, a post. The better your copy, the cheaper every customer gets. This is the single highest-leverage skill in business.