Editing is a stage of the writing process in which a writer or editor strives to improve a draft (and sometimes prepare it for publication) by correcting errors and by making words and sentences clearer, more precise, and more effective. Companies want copy that reflects well on their business, provides value to their readers and drives sales, so well-edited content will also look more attractive to content buyers. Proofreading is the process of reviewing the final draft of a piece of writing to ensure consistency and accuracy in grammar, spelling, punctuation, and formatting.