A copywriter is a person in charge of advertising and promotional materials: catalogs, brochures, billboards, emails, catalogs, ads and websites in general.
A “copy” is a text that sells, asking a reader to take action. Such an action could be to buy or engage with a product or service, or even with a company. Copy is a part of a $2.3 trillion industry worldwide.
To be a copywriter is to be a salesman. It has little to do with the ability to write texts or novels. And like most salesmen, a copywriter needs to have a natural talent for sales, and attend seminars and training courses to sharpen his abilities to convince and win over potential customers.