Editing vs proofreading in a nutshell
Editor’s note: First published in 2014, this article was revised in July 2026, absorbing a shorter companion piece, and checked against how our editors define these services today.
Editing and proofreading get talked about as if they’re the same job at two different price points. They’re not. They catch different problems, at different points in a manuscript’s life, and knowing which one you need before you ask for a quote will save you money and back-and-forth.
Editing, defined
Editing (sometimes called copyediting) improves how the writing works: sentence structure, word choice, pacing, tense consistency, tone, and whether the organisation of ideas actually makes sense to a reader who isn’t you. An editor will rewrite a clumsy sentence, flag a scene that drags, or query a paragraph that contradicts something forty pages earlier.
A few concrete examples of what an editor actually marks up: a sentence like “Being a Tuesday, the meeting, which had been scheduled weeks in advance by the committee, was postponed” gets tightened to “The meeting, scheduled weeks earlier, was postponed on Tuesday” — same information, half the friction. A manuscript that starts a chapter in the protagonist’s point of view and drifts into someone else’s halfway through gets flagged for a consistency decision, not just a grammar fix. A business report that buries its recommendation in paragraph four gets restructured to lead with it.
One important distinction: copyediting and structural (or developmental) editing are both types of editing, but they operate at different levels. Structural editing concerns the architecture of the whole piece — does the argument hold together, is the narrative sequence logical, are there sections that should be cut entirely or moved? Copyediting assumes the structure is broadly sound and works at the sentence and paragraph level: clarity, concision, consistency of voice, and correctness of grammar. Many manuscripts need structural editing before copyediting, not instead of it. If a chapter needs to be cut, there is no point polishing its sentences first.
Proofreading, defined
Proofreading is the final surface pass: spelling, grammar, punctuation, consistent formatting, and uniform use of one English variant (UK or US, not a mix of both). A proofreader is not rewriting your sentences or questioning your structure — they’re catching the errors that survive every other stage.
Concrete examples here look different: catching “it’s” where you meant “its”, noticing that chapter three calls a character “Sara” and chapter nine calls her “Sarah”, or flagging that half your document uses “organise” and the other half uses “organize”. These are surface-level, but a document riddled with them reads as unfinished no matter how good the underlying writing is.
It is worth understanding what proofreading is not responsible for. A proofreader is not your fact-checker — if you have written that a historical event occurred in 1842 when it occurred in 1824, that is outside the scope of a standard proofread unless you have specifically commissioned fact-checking. Similarly, a proofreader working on a laid-out document (a PDF or a formatted book interior, for example) is checking against the final typeset version for widows, orphans, misaligned text, and formatting inconsistencies that a word-processor pass would miss — this is sometimes called a “proof” in the traditional print sense, and it is distinct from proofreading a Word document before layout. Knowing which version of the service you need helps you brief the professional correctly.
When each belongs in the process
Editing happens once a draft exists but before you consider it finished — you’re still open to a sentence being cut, a section being reordered, a paragraph being rewritten. Proofreading happens last, after every structural and stylistic decision has already been made, right before the document goes out the door. Running proofreading before editing wastes the proofreader’s time, because an editor may cut the very sentence that was just proofread.
A rough sequence for a longer project — say, a thesis, a non-fiction book, or a substantial business report — might look like this:
- Structural edit: Is the overall argument, order, and scope right?
- Revision by the author: Incorporating structural feedback before any line-level work begins.
- Copyedit: Sentence clarity, consistency, voice, grammar, and style.
- Author review: Accepting or querying the copyeditor’s changes.
- Proofread: Final surface check on the clean, agreed-upon version.
Shorter documents — a cover letter, a short article, a press release — may not need every stage, but the order stays the same: bigger decisions first, surface corrections last.
A common mistake: proofreading your own work
Many writers attempt to proofread their own manuscripts to save time or money. The problem is a well-documented quirk of how reading works: your brain fills in what it expects to see rather than what is actually on the page. You wrote the document, so your brain knows what each sentence is supposed to say — which means it will silently correct a missing word, skip a doubled word, or read “the the” as “the” every time.
Professional proofreaders approach the text cold, which is what makes an independent pass genuinely useful even after you have read your own work a dozen times. If you must self-proofread, reading aloud is the most reliably supported technique — it adds a layer of cognitive difficulty that slows your brain down and forces it to process each word.
Reading in a different font or on a printed page is a useful complement, as is reading the text backwards (last sentence first), though these work best as supplements to reading aloud rather than substitutes for it.
The one-sentence rule of thumb
If you’re still asking “should this sentence exist at all?”, you need editing. If you’re only asking “is this sentence correct as written?”, you need proofreading. Most manuscripts genuinely need both, in that order, and for a fuller breakdown of which one your specific draft needs right now, our guide to choosing between structural editing, copyediting and proofreading walks through it in more depth.
If you already know which service you’re after, our editing and proofreading services page has the detail on how we run each one.