Nothing kills a reader's experience faster than a poorly formatted ebook. Broken tables of contents, missing chapter breaks, inconsistent fonts, and weird spacing all signal "amateur" to readers. Here's how to get your EPUB formatting right.
The Basics of Good eBook Formatting
Clean, semantic HTML. Every ebook is ultimately HTML under the hood. The cleaner your source formatting, the better your ebook will render across devices.
Proper chapter breaks. Each chapter should be its own section with a clear heading. This ensures your table of contents works correctly and readers can navigate easily.
Consistent styling. Don't mix fonts, sizes, or spacing styles within your manuscript. Choose one body font style and one heading style and stick with them.
Front matter and back matter. Include your title page, copyright page, and table of contents at the front. Include your also-by section, reader magnet CTA, and author bio at the back.
Common Formatting Mistakes
Inserting manual page breaks for spacing. These render differently on different devices and screen sizes. Use proper CSS spacing instead.
Using images for text. Decorative chapter headers as images can look great on tablets but terrible on e-ink readers. Keep text as text.
Forgetting the table of contents. Amazon requires a working table of contents. Without one, your book may be rejected or receive poor reviews.
Not testing on multiple devices. Your ebook might look perfect on your Kindle but broken on an iPhone. Test on at least two or three different devices or apps before publishing.
Tools for eBook Formatting
You don't need expensive software to create a well-formatted EPUB:
- Vellum (Mac only) is the gold standard for beautiful, press-ready ebooks
- Atticus is a cross-platform alternative with good template support
- Calibre is a free, powerful tool for conversion and basic formatting
- Online converters can handle quick format conversions when you need to go from EPUB to MOBI or vice versa
Testing Your Formatted eBook
Before publishing:
- Open your EPUB in at least two different reading apps
- Check every chapter break and heading
- Verify the table of contents links work
- Check for any images that don't display
- Read through on a phone to catch mobile layout issues
- Verify your front matter and back matter render correctly
A well-formatted ebook is invisible — the reader never notices the formatting because it just works. That's the goal.