The Copyediting Checklist: Consistency Before You Submit
The copyeditor sent my manuscript back with forty-one queries before she had touched a single plot problem. Not "why does your protagonist forgive her sister so fast," which was a real question somebody should have asked. Forty-one queries about "toward" versus "towards," about whether my invented city was Kethra or Kethera on page 40 and page 212, about a character who checked his cell phone in chapter two and his cellphone in chapter nineteen. I had read that manuscript at least six times. I had not caught one of the forty-one.
That is what copyediting actually is, and it is easy to confuse with the two jobs sitting next to it. Developmental editing asks whether the story works. Proofreading catches the stray typo after everything else is locked. Copyediting sits in between, and its whole job is consistency -- making sure every choice you made, on purpose or by accident, was made the same way every single time it recurs.
Nobody notices when this pass goes well.
Everybody notices, in a small, hard-to-name way, when it does not.
Benjamin Dreyer, who ran the copy department at Random House for two decades before writing Dreyer's English, puts the job plainly: a copyeditor is not there to impose "correct" English on your book, but to make sure your book agrees with itself. Mary Norris spent over thirty years in that same role at The New Yorker and wrote an entire memoir, Between You & Me, about how much of the job is invisible on purpose -- the reader is only supposed to notice the story, never the seams. This checklist will not replace either of them or the professional you eventually hire. It will get you to that hire with far fewer of the forty-one queries I got.
Build a Style Sheet Before You Touch Anything Else
A style sheet is a running document of every choice your manuscript has to make more than once. Without one, you make each choice fresh, in the moment, and drift without noticing.
Search your manuscript for each proper noun the moment you notice it recurring. My Kethra/Kethera slip happened because I never wrote the word down anywhere except inside the story itself, where I could misspell it in one direction and never see the two versions side by side.
Pick one and hold it for the whole book. A grep for ", and" catches most of the places you slipped.
The Chicago Manual of Style spells out zero through one hundred and uses numerals above that; plenty of house styles draw the line at nine instead. Either is fine. Switching between them mid-chapter is not.
Email or e-mail. Worldbuilding, world-building, or world building. Cell phone or cellphone. None of these choices is wrong. All of them are wrong the second time you make a different one.
Grammar and Punctuation Hold the Same Shape Everywhere
A scene that drifts from past to present tense and back without a signal is not experimental, it is a tell that the chapter was written in more than one sitting and never reconciled.
Cormac McCarthy dropped quotation marks entirely, in every book, for his entire career -- a genuinely unconventional choice that reads as confident precisely because he never once reached for one out of habit. Whatever you choose, choose it once and enforce it everywhere.
Italics for direct interior thought, roman for indirect. Pick the rule, then search for every instance and check it against the rule instead of your memory of what you meant to do.
An em dash for a line cut off by another character, an ellipsis for a voice fading out on its own. Mixing the two case by case reads as carelessness even when a reader cannot articulate why.
Measurements, Timeframes, and Formatting Do Not Wander
Miles or kilometers, pounds or kilograms. A fantasy novel invents its own units for exactly this reason -- pick one system for a grounded contemporary story and never let a character think in the other.
"3 p.m." or "three o'clock," never both on the same page for no reason. Days of the week, dates, and time-of-day phrasing all belong on the style sheet too.
If chapter one is titled and chapter two is only numbered, that is either a deliberate structural choice or an oversight. Know which one it is before a reader has to guess.
Read It the Way a Copyeditor Actually Would
Atul Gawande is a surgeon, not an editor, and his book The Checklist Manifesto is about operating rooms, not manuscripts. His argument still applies here without much translation: expertise does not prevent errors of memory and attention, and the fix is never "try harder to remember." The fix is an external list you actually run, in order, every time -- because the alternative is trusting the same brain that already read your book six times and missed forty-one things.
One search per rule. A single reread catches maybe a third of what a targeted search catches, because your eye slides past the pattern it is used to seeing.
You already know what you meant. A second reader only knows what is on the page, which is exactly the gap a copyeditor is paid to close.
If your father character loses a hand in chapter three and ties his own shoelaces with both by chapter twenty-one, that is a continuity error, a different job entirely. Copyediting will not catch it, and it should not try to. It belongs in the earlier structural passes of a full revision checklist, before consistency is even the question.
Toni Morrison edited books at Random House for nearly two decades before most of the world knew her as a novelist, which is a fact I find strangely comforting on the days copyediting feels like the least creative part of the whole process. It is not creative. It is not supposed to be. My manuscript went back to that copyeditor a second time with a style sheet instead of nothing, and it came back with four queries instead of forty-one -- three of them about a comma rule I had genuinely never known existed, and one about Kethra, which had somehow become Kethera again, once, on a page I had sworn I already fixed.
Keep your style sheet next to the manuscript, not in a separate document you forget to open. Plotiar's notes and lore panels sit beside the page as you write, so a name spelling or a formatting rule is one click away instead of a search you keep meaning to run. Try it free.