professional writer may be freelance, meaning he or she works on a self-employed basis, or fully employed in an occupation where their primary responsibility is the production of specialized documentation, such as journalism, marketing, advertising, public relations, or the military.[3] Yet even workers who don't necessarily think of themselves as professional writing practitioners regularly produce professional documentation regularly in the course of their work as lawyers, doctors, entrepreneurs, engineers, and social workers.[4] Moreover, as Anne Beaufort observes, writing skills .I have 5 year work experience. And I have master degree.