The ongoing debate about double spacing after a period touches on style guides, design history, and digital typography. Modern best practices have shifted, yet the habit persists for many writers and professionals.
Whether you are editing a legal document, preparing marketing copy, or finalizing academic work, understanding how spacing interacts with readability and accessibility is essential. This article breaks down the main contexts where double spacing appears and how to apply current standards.
| Style Era | Standard Use | Typeface Context | Modern Recommendation |
|---|---|---|---|
| Manual Typewriter | Double space after periods | Monospaced fonts | Obsolete; avoid in digital publishing |
| Late 20th Century Print | Mixed usage by publication | Proportional fonts | Single space became industry norm |
| Digital Design | Variable usage in legacy docs | Screen-optimized fonts | Follow style guide; typically single space |
| Academic and Legal | Institution-specific rules | Serif and sans serif | Check APA, MLA, The Chicago Manual, jurisdiction rules |
Typography Evolution and Double Spacing
Early typewriters used monospaced fonts, which created uneven visual rhythm and led to the double space convention. With the adoption of proportional fonts in professional publishing, single spacing delivered cleaner lines and improved reading rhythm.
Style Guides and Editorial Standards
Major style authorities provide clear direction to reduce visual noise and ensure consistency across publications. Modern guides prioritize a single, uniform space after terminal punctuation.
The Chicago Manual of Style
Prescribes a single space after periods, colons, and other closing punctuation in published works to maintain even color and professional appearance.
APA and MLA Formats
Both APA and MLA recommend one space after periods in student papers and publications, aligning with contemporary typesetting standards.
Digital Design and Web Readability
On websites and in apps, extra spacing can disrupt vertical rhythm, create alignment issues, and introduce accessibility challenges for users of assistive technologies.
Screen Legibility
Clean typography with consistent spacing improves scanability, especially on smaller screens where layout constraints are more pronounced.
Legal and Academic Document Formatting
Some institutions and courts preserve legacy formatting expectations. Always verify rules if templates or submission guidelines call for double spacing.
Court Submission Guidelines
Local rules may specify double spacing for certain filing formats; confirm with the specific jurisdiction to avoid procedural issues.
Best Practices for Consistent Spacing
- Follow the style guide required by your institution, publication, or client.
- Set default single spacing in your word processor or design system.
- Use find-and-replace to correct legacy double spaces before publishing.
- Check templates and forms to ensure they match current standards.
- Test documents on different devices to confirm spacing remains readable.
FAQ
Reader questions
Should I use double spacing in my resume or CV?
Use single spacing for readability and to fit more content cleanly; reserve double spacing for specific instructions that require visual separation between sections.
Will a double space after a period improve accessibility?
It does not meaningfully improve accessibility; consistent single spacing and clear structure are more effective for screen readers and layout stability.
Is it acceptable to keep double spacing in digital communications?
Modern digital standards prefer single spacing; double spacing may appear dated or create awkward line breaks in responsive layouts.
How can I change all double spaces to single spaces efficiently?
Use find-and-replace tools in word processors or code editors to normalize spacing across documents and maintain consistent formatting.