Do I Underline the Title of a Book? A Complete Guide to Proper Formatting
When you sit down to write an essay, a research paper, or even a casual blog post, one of the first formatting questions that pops up is: **do I underline the title of a book?Also, ** The answer depends on the style guide you are following, the medium you are writing for, and the conventions that have evolved with modern publishing technology. This article walks you through the history of underlining, explains why italics have largely replaced it, and gives you clear, step‑by‑step rules for the most common academic and professional styles. By the end, you’ll know exactly when to underline, when to italicize, and when to use quotation marks—so your work looks polished and adheres to the standards expected by instructors, editors, and readers.
The Origin of Underlining Book Titles
Before word processors offered easy italic formatting, writers relied on typewriters. Those machines could not produce slanted text, so the only way to set a title apart from the surrounding prose was to underline it. In handwritten manuscripts, underlining served the same purpose: a visual cue that the marked words represented a standalone work, such as a novel, a play, or a film.
Because of this legacy, many older style manuals (especially those published before the 1980s) explicitly instructed writers to underline book titles. If you ever see an underline in a printed book from the mid‑20th century, it is a relic of that typesetting limitation, not a rule that still applies today Most people skip this — try not to..
It sounds simple, but the gap is usually here.
Why Italics Have Replaced Underlining
With the advent of computers and word‑processing software, italic fonts became readily available. Italic type provides a cleaner, more typographically correct way to distinguish titles without adding extra visual clutter. Most contemporary style guides now prescribe italics for the titles of longer works (books, journals, movies, albums, etc.
Real talk — this step gets skipped all the time.
- Handwritten work where italics cannot be produced.
- Certain legal documents that still follow older court‑rules.
- Instructors who explicitly request underlining for consistency with older assignments.
If you are typing on a computer, italicizing is almost always the preferred method. Underlining should only be used when you are writing by hand or when a specific style guide you are required to follow still mandates it Most people skip this — try not to..
How Major Style Guides Treat Book Titles
Below is a concise comparison of the three most widely used academic style guides—MLA, APA, and Chicago—along with notes on when underlining might still appear Small thing, real impact..
Modern Language Association (MLA) 9th Edition
- Books: Italicize the title.
- Articles, essays, short stories, poems: Place the title in quotation marks.
- Underlining: Not recommended; only acceptable if you are writing by hand and cannot produce italics.
Example
To Kill a Mockingbird explores themes of racial injustice.
“The Lottery” is a short story by Shirley Jackson.
American Psychological Association (APA) 7th Edition
- Books and reports: Italicize the title.
- Book chapters, journal articles: No italics or quotation marks; sentence case only.
- Underlining: Not used in APA formatting; italics are required for standalone works.
Example
Publication Manual of the American Psychological Association (7th ed.).
Smith, J. A. (2020). The effects of sleep deprivation on cognitive performance. Journal of Sleep Research, 29(4), e12945 Simple, but easy to overlook..
The Chicago Manual of Style (17th Edition)
- Books: Italicize the title.
- Articles, chapters, poems: Quotation marks.
- Underlining: Acceptable only in manuscripts that will be typeset later and where the editor has requested underlining as a placeholder; otherwise, italics are standard.
Example
The Great Gatsby is often taught in high school literature courses.
“A Good Man Is Hard to Find” showcases Flannery O’Connor’s Southern Gothic style.
When Underlining Is Still Appropriate
Even though italics dominate digital writing, there are legitimate scenarios where underlining remains the correct choice:
-
Handwritten Assignments
If you are taking notes in a notebook, completing an in‑class essay, or filling out a worksheet by hand, you cannot easily produce italic text. Underlining each book title clearly signals its status as a standalone work. -
Legal Citations
Some courts and legal publishers still require underlining for case names and certain statutory references. Always check the local court rules or the specific legal citation manual (e.g., The Bluebook) you are using No workaround needed.. -
Manuscript Preparation for Certain Publishers
A few niche publishers request that authors underline titles in the raw manuscript so that the typesetter can easily replace the underlines with italic font during production. If you are submitting to such a publisher, follow their style sheet explicitly. -
Consistency with Older Documents
When you are editing or annotating a historical text that originally used underlining, preserving that formatting can help maintain the document’s authenticity.
In all of these cases, the underlying principle is the same: underlining functions as a substitute for italics when the latter cannot be produced.
Practical Formatting Checklist
Use this quick checklist whenever you are unsure whether to underline, italicize, or quote a book title.
| Situation | Recommended Format | When to Use Underlining |
|---|---|---|
| Typed essay/paper (MLA, APA, Chicago) | Italicize book titles | Only if you cannot produce italics (e.g.So , handwritten) |
| Handwritten assignment | Underline book titles | Always (since italics aren’t feasible) |
| Legal brief or court document | Follow local court rules (often underlining) | As required by the jurisdiction |
| Manuscript for a publisher that requests underlining | Underline as placeholder | Per publisher’s style sheet |
| Blog post or informal web article | Italicize (most platforms support it) | Rarely needed; use only if platform lacks italic support |
| Social media caption (plain text) | Use underscores or asterisks if platform allows (e. g. |
Tip: If you are writing in a word processor (Microsoft Word, Google Docs, LibreOffice), you can italicize text by selecting it and pressing Ctrl + I (or Cmd + I on Mac). Underlining is Ctrl + U (or Cmd + U). Knowing these shortcuts makes it easy to switch between the two formats instantly.
Common Mistakes and How to Avoid Them
Even experienced writers sometimes slip up when formatting titles. Below are frequent errors and simple fixes.
| Mistake | Why It’s Wrong | Correction |
|---|---|---|
| Underlining a book title in a typed MLA paper | MLA specifies italics; underlining looks outdated |
| Underlining a book title in a typed MLA paper | MLA specifies italics; underlining looks outdated | Use italics via your word processor's italic function | | Quotation marks around an entire book title | Quotation marks are reserved for shorter works (articles, poems, short stories) | Italicize the full title; reserve quotes for shorter works within it | | Italicizing a series or franchise name as if it were a single title | Series names (e.g., Harry Potter as a franchise) may be italicized, but individual entries within the series follow their own rules | Consult your style guide for series vs.
Tip: A quick proofread focused solely on formatting can catch most of these errors before submission. Reading your work aloud or printing it out can help you spot inconsistencies that disappear on screen.
A Note on Evolving Standards
Formatting conventions are not set in stone. Think about it: as technology changes, so do the tools available to writers. Today, nearly every digital platform supports italic formatting natively. Decades ago, typewriters made italics impossible, so underlining was the universal standard. Some style guides have even begun relaxing certain rules for digital publishing. To give you an idea, the Chicago Manual of Style acknowledges that authors publishing exclusively online may adapt typographic conventions to suit the medium, provided clarity is preserved.
Despite these shifts, the core principle remains stable: a title should be visually distinguished from surrounding text so the reader can immediately recognize it as the name of a standalone work. Whether you achieve that distinction through italics, underlining, or another markup method, the goal is always readability and consistency.
Quick Reference: Major Style Guides at a Glance
| Style Guide | Book Title Format | Notes |
|---|---|---|
| MLA (9th ed.) | Italicize | Underline only when handwriting |
| APA (7th ed.) | Italicize | Used for journal and book titles |
| Chicago | Italicize | Underline acceptable in handwritten drafts |
| Bluebook | Underline or Italicize | Depends on the court and jurisdiction |
| AP Style | No italics; use quotation marks | AP reserves quotes for book titles in running text |
People argue about this. Here's where I land on it.
Knowing which guide governs your writing is the single most important step. When in doubt, consult the most recent edition of the relevant manual or ask your instructor, editor, or publisher for their preferred style sheet.
Conclusion
Formatting book titles correctly may seem like a small detail, but it reflects your attention to precision and respect for the conventions of your chosen style guide. The difference between underlining and italicizing is not merely aesthetic—it signals to your reader that you understand the context in which your work is being consumed, whether that is a handwritten essay, a legal brief, a published manuscript, or a digital article It's one of those things that adds up..
No fluff here — just what actually works It's one of those things that adds up..
To summarize the key takeaways:
- Italicize book titles in all typed, digital, and published work as the default standard.
- Underline only when italics are genuinely unavailable—most commonly in handwritten documents, certain legal filings, or when a publisher's style sheet explicitly requires it.
- Stay consistent throughout your entire document; never mix underlining and italics for the same type of title.
- Check your style guide or platform requirements whenever you are unsure, and always verify that your formatting renders correctly in the final medium.
By following these principles, you confirm that your writing looks polished, professional, and aligned with the expectations of your audience. Mastering this seemingly minor skill is one of the simplest yet most effective ways to elevate the overall quality of any piece of writing you produce.