Editor n. : One who edits; esp., a person who prepares, superintends, revises, and corrects a book, magazine, or newspaper, etc., for publication.

Example:
What is the difference between an Editor and a copy Editor?

Taxonomy
editors, executive editor, Technical editing, writers, correction, copy editor, free encyclopedia, scholarly books, journals, Newspaper, product, substantive, responsibilities, Business editing, copy editing, managing editors, language, executive editors.

Defination from the web:
editor. ... Improving an author's writing so that they indeed say what they mean to say in an effective manner; a substantive editor. ...