What Is Proofreading? What a Book Proofreader Checks (With a Checklist)

Proofreading is the last check a book gets before readers see it. A proofreader reads the finished, laid-out pages (the "proof") and catches what every earlier pass missed: typos, dropped words, inconsistent spellings, wrong page numbers and awkward line breaks. It isn't rewriting and it isn't fact-checking. Those jobs belong to editing, which comes first. Here's exactly what a book proofreader checks, what they leave alone, when to do it, and a checklist you can use on your own pages.

Key takeaways#

• Proofreading is the final quality check on a book, done after editing and, ideally, after the book has been formatted.
• A proofreader fixes surface errors: spelling, punctuation, missing or repeated words, consistency, page numbers, headers and bad breaks.
• A proofreader doesn't restructure, rewrite sentences or fact-check. If your book needs that, it needs an edit first.
• Proofread the pages readers will actually see, such as your print proof or your ebook preview, not just the Word file.
• You can proofread your own book with a checklist and a few tricks, but a second pair of eyes catches what you can't.

What is proofreading?#

In everyday use, "proofreading" means any final read-through to catch mistakes. In publishing it means something more specific. Once a book has been edited, it's typeset or formatted into pages. That draft of the final layout is called the proof, and proofreading is the careful read of that proof before it goes to print or online.

The Chartered Institute of Editing and Proofreading (CIEP), the UK's professional body for editors, describes proofreading as the final quality check before publication, after editing and layout. That's why it sits at the end of the editing order: developmental edit, then line edit, then copy edit, then proofread. Each stage assumes the one before it is finished. Proofreading a chapter you're about to rewrite is money and time down the drain.

Because the text is already laid out, a proofreader also has to think about how every correction fits the page. Adding three words to a paragraph can push a line onto the next page, create a stray line at the top of it, and shift the page numbers that follow. A good proofreader keeps changes small for exactly that reason.

What does a book proofreader check?#

A proofreader looks for errors that slipped through editing and errors that were created during layout. On a book, that usually means:

• Spelling and typos. Misspellings, typing slips, and real words that are wrong in context ("form" for "from"), which a spellchecker won't flag.
• Missing or repeated words. "The the", a missing "not", or a line of text that vanished during formatting.
• Punctuation. Stray or missing commas, apostrophes, full stops, and dialogue punctuation, especially where an error changes the meaning.
• Consistency. One spelling for each name and place, the same hyphenation and capitalisation throughout, and one style for numbers, dates and quotation marks. If your copy editor made a style sheet, the proofreader works from it.
• Page furniture. Running heads, page numbers, and chapter titles that match the table of contents, word for word and page for page.
• Layout faults. Uneven spacing, odd word breaks at line ends, a lone line stranded at the top or bottom of a page (see our guide to widows and orphans), and chapters starting on the wrong side.
• The small print. Captions, cross-references ("see page 112"), footnotes, and the details in your front matter, such as the title page, copyright page and ISBN.

What a proofreader won't do

A proofreader won't restructure your book, smooth out clunky sentences or tell you a subplot isn't working. Those are editing jobs. The CIEP is clear that fact-checking isn't part of a proofreader's remit either, though a good one will query anything that looks wrong rather than ignore it.

If you're asking for "a proofread" but you really want someone to tighten the prose, you need a line edit or a copy edit. Some editors combine copy editing and proofreading into one pass, sometimes called a proof-edit. That's heavier than a proofread and is usually done on the manuscript rather than the laid-out pages.

For a side-by-side guide with examples, read proofreading vs copy editing.

When should you proofread your book?#

Proofread last. In practice, for a self-published book, that means:

1. 1Finish your edits first. Structural changes and rewrites come before any proofread.
2. 2Do a final read of the edited manuscript. Many authors and editors do a clean-up pass on the Word file before formatting. It saves fixing the same typo twice.
3. 3Proofread the formatted pages. This is the read that matters most, because it's what readers will see. Layout creates its own errors: dropped italics, broken lines, wrong running heads.
4. 4Check a physical proof for print. On Amazon KDP you can order printed proof copies once you've approved your book in the Print Previewer. You can order up to five at a time, and each one carries a "Not for Resale" watermark. Mistakes that hide on a screen often jump out on paper.
5. 5Check the ebook separately. An ebook reflows, so look at it in a previewer on more than one screen size rather than assuming the print proof covers it.

Don't keep tinkering after the proofread. Every late change is a chance to introduce a new error, so any change you make after this point needs checking again.

A proofreading checklist for your book#

Work through this one pass at a time. Trying to catch everything in one read is how things get missed.

Words

• Read for typos and wrong-but-real words (their/there, form/from, lose/loose).
• Look for doubled words at line breaks and missing small words (a, the, not).
• Search the file for words you know you overuse or often mistype.

Punctuation

• Check every piece of dialogue: opening and closing quotation marks, and commas inside the closing mark.
• Check apostrophes (its/it's, plurals with no apostrophe).
• Look for double spaces, spaces before punctuation, and stray hyphens.

Consistency

• One spelling for every character and place name.
• One style for numbers (seven or 7), dates and times.
• One choice of single or double quotation marks, and British or American spelling throughout.
• Matching heading styles for every chapter.

Pages

• The contents page matches the chapter titles and page numbers exactly.
• Running heads show the right book title, author name or chapter on every page.
• No page numbers or headers on pages that shouldn't have them, such as the title page and blank pages.
• No lone lines at the top or bottom of a page, and no rivers of white space in justified text.
• Chapters start where you intended, on a right-hand page or the next page.

Front and back matter

• Title, subtitle and author name are spelt the same on the cover, title page, copyright page and spine.
• The ISBN on the copyright page is the one for this format.
• Links, web addresses and email addresses in the back matter are correct.

Final file

• All corrections from the last round have gone in, and nothing new has broken around them.
• You've checked the version you're about to upload, not an earlier copy.

How to proofread your own book#

You know what your book is meant to say, so your brain fills in what's missing. These habits help you see what's actually on the page:

• Take a break first. Leave the book alone for a few days so you come back to it as a reader.
• Change the format. Read a printed proof, or at least a PDF on a different device. A change of format makes the text look new.
• Read it aloud, or let your computer read it to you. You'll hear the missing word your eye skipped.
• Do one job per pass. One read for words, one for punctuation, one for pages and headers.
• Read in short sessions. Your attention fades long before you notice it fading.
• Keep a style sheet. A simple list of names, spellings and choices makes consistency checks quick.

Even with all of that, self-proofreading has a limit: you can't unknow your own book. Before you publish, ask someone who hasn't read it to go through the pages, ideally a professional.

Do you need a professional proofreader?#

If your book has been copy edited and you're publishing in print, a professional proofread is worth considering. Readers notice typos, and some leave reviews about them. If your budget only stretches to one pass, though, a copy edit usually does more for a first-time author than a proofread does. Our guide to book editing costs in the UK breaks down what each kind of edit typically costs.

At HMD, book proofreading is part of our Fresh Eyes package: a line edit and proofread, with a plagiarism check and an editing summary report, for £197 ($249) for up to 20,000 words, delivered in 7 days with 1 revision round. Longer manuscripts get a free exact quote within one business day. If you'd rather see the work before you decide, start with a free sample edit of up to 1,000 words, returned as track changes with feedback, normally within 24–48 hours.