Copy editing - Wikipedia, the free encyclopedia: "The “Five Cs” summarize the copy editor's job: make the copy (i) clear, (ii) correct, (iii) concise, (iv) comprehensible, and (v) consistent; that is: make it say what it means, and mean what it says. Typically, copy editing involves correcting spelling, punctuation, grammar, terminology and semantics; ensuring that the typescript adheres to the publisher's house style; and adding headlines and standardized headers, footers, etc."