The bluepenciler is an individual who reviews written work and makes edits or deletions. Some synonyms for this term include copy editor, proofreader, censor, editor, and reviser. These individuals ensure that written material is accurate, coherent, and free from errors and inconsistencies. A copy editor also checks for spelling, grammar, and punctuation errors, while a proofreader focuses on identifying and correcting typographical errors. A censor has the additional responsibility of removing inappropriate or offensive content. An editor oversees the writing process from start to finish, while a reviser makes substantive changes to the structure and content of a piece of writing.