A description of Style guides that proofreaders and copyeditors would refer to when editing a body of work for publishing.
Style guides are books or published manuals that are used as reference tools by both copyeditors and proofreaders. Writers and publishers would refer to a style guide as they begin to prepare a body of work regarding a particular field or profession. Its purpose is to provide consistency and factualness in the writing.
It also gives examples of proper spelling, acceptable uses of words and punctuation when preparing to write something that will be published. There are style guides used that apply to all kinds of different types of professions. Style sheets are created by copyeditors to insure consistentcy in a body of work.
When there is a word that has two acceptable ways of being spelled, the copyeditor would insure that the entire body of work continues to spell the word the same way. The style sheet can be passed onto the writer/author/publisher, and is definitely provided to the proofreader and typesetter.
Any notes made by the copyeditor on the style sheet would allow the proofreader to see why things are left the way they are in the completed body of work. There may also be specific instructions for the proofreader not to alter the style because it may reflect the author’s tone or the publisher’s preference.
A proofreader can create their own style sheet as a note for any changes being made or serve as a reminder for the form they must follow.