What does a copy editor do on a book?

The job, in the editors' own definition

The Editorial Freelancers Association (EFA), a US association of freelance editors, defines copyediting in its Editorial Service Definitions as "perhaps the most familiar kind of editing": correcting spelling, grammar, usage and punctuation, checking cross-references, and preparing the style sheets that guide consistency and accuracy across the manuscript.

On a nonfiction book, that turns into a list like this:

• Correctness. Spelling, grammar, punctuation, and word usage (affect or effect, fewer or less, who or whom).
• Consistency. One spelling and capitalization for every term, name and product; one way of writing numbers, dates and percentages; one hyphenation choice for each compound word.
• Cross-references. "See chapter 6" points to chapter 6; numbered lists, figures and tables run in order.
• Notes and citations. One format throughout, usually following The Chicago Manual of Style for US books.
• Flags. A date that contradicts an earlier chapter, a statistic that looks off, a quote with no source. They flag these; checking every fact is a separate service.
• Queries. Notes to you wherever a fix needs your judgment.
• The style sheet. A record of every decision, so the proofreader and designer follow the same rules.

What a copy editor does not do

• Restructure the book. Moving chapters, cutting sections and fixing the argument is developmental editing, and it should be finished before the copyedit.
• Rewrite for style. Making sentences sharper and the voice stronger is line editing. Some editors offer a heavier copyedit that includes some of this; ask what is included. Line editing vs copyediting shows the difference on one paragraph.
• Fully fact-check. Verifying every claim, quote and source is fact-checking.
• Proofread the designed pages. That happens after layout, by a proofreader. See copyediting vs proofreading.

A copyedit, before and after

Here is a short passage from a fictional business book, and what a copy editor might do with it. We wrote both for this page.

Notice what changed and what did not. Spelling, punctuation, capitalization and number style were fixed, and the sentence that opens with a numeral was rewritten to start with a word. The order of ideas, the claims and your voice were left alone. The two things that need your knowledge, the contradiction and the missing source, became queries rather than guesses.

How a copyedit works, step by step

1. You send the final manuscript. Structure and content should be settled. Big changes after the copyedit undo its work.
2. The editor works through it with tracked changes on, usually in Microsoft Word, building the style sheet as they go.
3. You get three things back: the manuscript with tracked changes, the queries as comments, and the style sheet.
4. You review. Accept or reject changes and answer every query. Reject a change only when you have a reason; most changes follow the style manual.
5. The editor does a clean-up pass on your answers and any new text you wrote.
6. The manuscript goes to design, then to proofreading on the designed pages.

The Scribe Method's chapter on copyediting treats this as the point to lock the manuscript: every change after formatting and layout begins can add hours of work and hundreds, if not thousands, of dollars in costs.

How long it takes and what it costs

The EFA's 2026 Rate Chart gives these median ranges for nonfiction copyediting, counting a page as 250 words:

• Per word: 3 to 4 cents ($30 to $40 per 1,000 words).
• Per hour: $45 to $60.
• Per page: $7.50 to $10.00.
• Pace: 5 to 9 pages an hour.

For a 50,000-word manuscript (200 pages), that works out to about $1,500 to $2,000 at the per-word rate, and about 22 to 40 hours of work at the median pace. A messy manuscript takes longer. For a quote on your own word count, use the calculator in how much a book editor costs.

How to get the most from your copy editor

• Finish the big edits first. Paying for a copyedit on chapters you will later cut is the most common waste.
• Start your own style list. Note how you write your framework names, company names and recurring terms. Send it with the manuscript.
• Send notes and sources. If the editor can see where your numbers come from, their queries get shorter.
• Say what not to touch. Deliberate fragments, a client's exact words, a phrase that is part of your voice.
• Ask for the style sheet as a deliverable, and confirm whether a clean-up pass is included in the price.
• Ask for a sample edit of a few pages before you book, so you can see their touch.

Not sure your book is ready for a copyedit? The six-question editor finder on this site will tell you which kind of edit it needs next, including "not yet."