Formatting a book feels like one big chore you’ll deal with “later.” It’s actually three small jobs spread across three stages of writing, and the writers who do the first one early save themselves hours of pain at the end. This guide walks through all three in Microsoft Word: setting up styles before you finish drafting, formatting a clean manuscript for your editor, and preparing a publish-ready file you can convert to EPUB.
One habit ties it all together: let Word’s styles do the formatting, not your fingers. Do that, and everything downstream gets easier.
The short version
- Formatting is three jobs at three stages, not one job at the end.
- Set up Word Styles (Heading 1 for chapters, a body style for prose) before you finish drafting.
- For your editor, standard manuscript format: double-spaced, 12pt, 1-inch margins, indents from the style, left-aligned.
- To publish: switch to publication format, build a Table of Contents from your headings, and convert to EPUB with a dedicated tool (Word won’t do it cleanly).
- Never indent with tabs or spaces, and never format by hand what a style can do for you.
Part 1 — before you finish: set up Word Styles
Too many writers format by hand: bold a chapter title, hit Enter a few times, press Tab to indent. It works until it doesn’t. It saves time and energy to consider these things beforehand, or else you’re editing forty of them one by one. Word’s Styles fix this. A style is a saved bundle of formatting; change the style once and every piece of text using it updates instantly.
Set up your body text. On the Home tab, right-click the Normal (or Body Text) style in the Styles gallery and choose Modify. Set a readable serif at 12pt, your line spacing, and set the first-line indent through Format → Paragraph → Special → First line, not with the Tab key. Turn off extra spacing between paragraphs; fiction uses indented paragraphs with no gap between them.
Set up your headings. Do the same for Heading 1 (chapter titles) and Heading 2 (sections, if you use them). For Heading 1, in Modify → Format → Paragraph, tick “Page break before” so every chapter starts on a fresh page automatically. Now applying Heading 1 to a title both styles it and tells Word “this is a chapter.”
The payoff. Open View → Navigation Pane and you get a clickable outline of your whole book, because Word reads your headings as structure. That same structure later builds your ebook’s chapter navigation for free, and a table of contents if you need one. Styling with real styles from page one is the single highest-leverage habit in this guide.
Part 2 — when it’s done: format for your editor
When your draft is finished and revised, your editor wants a clean, standard manuscript, not a designed book. Standard formatting keeps the focus on the words and makes tracked changes and margin comments behave predictably. The spec is nearly universal:
- 12pt Times New Roman (or a similar standard serif)
- Double-spaced lines
- 1-inch margins on all sides
- A 0.5-inch first-line indent, set in your paragraph style (not tabs)
- Left-aligned with a ragged right edge — not justified
- Page numbers in the header or footer
- A title page: title, your name, contact details, and an approximate word count
Clean up before you send
A few minutes with Find & Replace (Ctrl+H) removes the invisible mess that hand-formatting leaves behind. Click More → Special to insert these codes from a menu, or type them straight into the fields. Here are a few hacks to address some of the most common formatting errors.
Stray line breaks. The most common offender by far: a manuscript full of manually inserted new lines that break paragraphs in the wrong places. There are two kinds, and the fix depends on which you have.
- Manual line breaks (someone pressed Shift+Enter) are “soft” returns that don’t start a new paragraph. Their code is
^l(a lowercase L). Find^land replace it with a single space, or with^pif each one really should become its own paragraph. This is safe to replace across the whole document. Your real paragraph breaks are safe, but if you don’t believe us you can replace one at a time instead of ‘replace all’. - Hard returns at the end of every line (Enter pressed mid-paragraph) are the painful ones, because the paragraph marks are scattered inside paragraphs. You can’t just replace every
^pwith a space, unless you want the whole book squished into one block. Instead, we learned a three-step swap we’ll share with you. This works when real paragraphs are separated by a blank line. (1) Find^p^p, replace with a placeholder like@@@to park the real breaks; (2) Find^p, replace with a single space to kill the leftover false breaks; (3) Find@@@, replace with^p^pto restore the real breaks. Pick a placeholder that can’t appear in your text.
Double spaces and stray tabs. Find two spaces and replace with one, and repeat until Word reports zero. Then hunt down any tabs or runs of spaces you used to indent (Find ^t, replace with nothing) and let your paragraph style handle the indent instead.
Scene breaks. Mark them consistently. A centred # is standard, but we’ve seen asterisks or even an ellipsis with an extra period (....). There’s no strict rule here; the intention is that you use the same symbol every time, so your editor can see every intended break at a glance.
When it’s clean, Save As a .docx file. That’s the format every editor works in. A thirty-second final check: styles applied throughout, no manual tabs or double spaces, no stray line breaks, consistent scene breaks, page numbers on, title page in place, saved as .docx. If you’d like professional eyes on the manuscript itself, a clean file like this is exactly what we ask for with a free sample edit.
Part 3 — when it’s ready: publish-ready formatting and EPUB
Once the edit is done and the book is final, you format it a second time, but this time it’s for readers. Publication formatting inverts a few of the manuscript rules: single-spaced, justified text, tighter indents, and the front and back matter (title page, copyright page, dedication, and an about-the-author). If your styles are clean, most of this is quick.
A table of contents (mostly for the ebook). Print novels usually skip a visible contents page as readers move through the story in order, so most paperbacks go straight into Chapter One or the prologue. Ebooks are the opposite: retailers like Amazon KDP expect a navigable table of contents so readers can jump between chapters, and so reading apps can surface it. Either way, Word builds it the same way: put your cursor where the contents belong, go to References → Table of Contents, and pick an automatic table. Word assembles it from your Heading 1 and Heading 2 text — the exact structure you set up in Part 1 — and in an ebook that heading structure becomes the reader’s chapter navigation.
Convert to EPUB. Word can’t export a clean EPUB on its own, so the last step happens in a dedicated tool. Clean Heading styles make any of them produce a properly navigable ebook. We have the most hands-on experience with Kindle Create (free, from Amazon) and tend to suggest it, with one caveat: it builds a Kindle file for direct upload to Amazon KDP, not a standard EPUB. If you publish only to Kindle, that’s all you need. If you also sell through Apple Books, Kobo, or Google Play, you’ll want a true EPUB from one of these:
- Calibre (free; Windows, Mac, Linux). Import your .docx and convert to EPUB. The most popular free route.
- Draft2Digital (free). Even if you don’t distribute through them, their converter turns a clean Word file into a tidy EPUB.
- Reedsy Book Editor (free, web-based). Write or paste in, then export EPUB and a print-ready PDF.
- Vellum (Mac, paid) and Atticus (cross-platform, paid). All-in-one formatters if you want more design control.
Validate the file. Before you upload it anywhere, open it on a real device or reading app to confirm the chapters, table of contents, and scene breaks all landed the way you expect. For Kindle, Amazon’s free Kindle Previewer 3 shows exactly how your book will render on their devices and flags problems before you publish. For a standard EPUB going to other stores, the conformance check is EPUBCheck, the official validator maintained by the W3C on GitHub. It’s a command-line tool; if you’d rather avoid the command line, the free pagina EPUB-Checker desktop app runs the same engine behind a simple interface.
Whichever you use, run it locally. Be wary of random “validate your EPUB online” sites: you’d be handing your unpublished manuscript to an unknown third party. Amazon’s tools are the authority on correctly formatted Kindle books, and the W3C’s EPUBCheck on the EPUB standard itself; neither is the sharpest-looking, but they’re the trustworthy source.
Common questions
Do fiction books need a table of contents?
Print novels usually skip one; readers move through the story in order, so a visible contents page is optional. Ebooks are different: retailers expect a navigable table of contents so readers can jump between chapters, and it’s built from your Heading styles. Skip it in a print paperback if you like, but keep it for the ebook.
Do I need to format my book before sending it to an editor?
No, but we appreciate it. Standard manuscript format at the revisions stage is: 12pt, double-spaced, 1-inch margins, first-line indents from your paragraph style, left-aligned, with page numbers and a title page. It’s simple and it makes the edit cleaner.
What file format do editors want?
A Microsoft Word .docx file. It’s what tracked changes and in-document comments are built for.
How do I make a table of contents in Word?
Apply Heading styles to your chapter and section titles, then go to References → Table of Contents and choose an automatic table. Word builds it from those headings.
How do I convert a Word document to EPUB?
Word can’t do it cleanly on its own. Use a tool like Calibre (free), Draft2Digital’s free converter, or a paid formatter like Vellum or Atticus. Clean Heading styles make the conversion navigate properly.
Should I indent paragraphs with the Tab key?
No. Set the first-line indent in your paragraph style instead. Tabs and spaces break when the text reflows, especially in an ebook.