How to write a book title in an essay depends on the citation style your assignment requires. The universal rule across MLA, APA, and Chicago is the same: italicize the full book title and use title case capitalization. This guide walks you through every style with clear examples.

The universal rule: italicize book titles

Every major style guide agrees on one thing: book titles get italicized in typed essays. This replaced the older practice of underlining, which was only necessary when typewriters could not produce italics.

Here is the core distinction you need to remember:

Work TypeFormattingExamples
Full-length works (books, films, albums)ItalicsTo Kill a Mockingbird, The Great Gatsby
Short works (chapters, articles, poems)“Quotation marks""The Raven,” “Chapter 3: The Storm”

If a book title appears inside a quotation or another italicized title, the formatting rules shift slightly. A book title within a quotation keeps its italics. A book title within an already-italicized title reverts to regular (roman) type.

How to format book titles in MLA style

The MLA Handbook (9th edition) is the most common style in English and humanities courses. Its rules for book titles are straightforward.

In-text formatting:

Italicize the book title and capitalize all principal words. Do not capitalize articles (a, an, the), prepositions (of, in, to), or coordinating conjunctions (and, but, or) unless they are the first or last word of the title.

Example in a sentence:

In The Catcher in the Rye, Holden Caulfield’s distrust of the adult world drives every decision he makes.

On your Works Cited page:

The title stays italicized and follows the same capitalization rules. Place a period after the title.

Salinger, J.D. The Catcher in the Rye. Little, Brown and Company, 1951.

When no author is available:

If you need to cite a book with no listed author, use a shortened version of the italicized title in your parenthetical citation. For example: (Catcher 45).

How to format book titles in APA style

APA (7th edition) is standard in psychology, education, and the social sciences. The rules change depending on where the title appears.

In the body of your essay:

Italicize the title and use title case, capitalizing all major words.

Morrison’s Beloved examines the psychological aftermath of slavery through the lens of a single family.

In your reference list:

The title stays italicized but switches to sentence case. Only capitalize the first word, the first word after a colon, and any proper nouns.

Morrison, T. (1987). Beloved. Alfred A. Knopf.

This is the biggest difference between APA and MLA. The in-text formatting looks identical, but the reference list capitalization changes entirely.

Citing a chapter within a book:

When citing a specific chapter or section, the chapter title goes in regular type (no italics, no quotation marks) and the book title stays italicized.

How to format book titles in Chicago style

The Chicago Manual of Style is used in history, arts, and many publishing contexts. It offers two systems: notes-bibliography and author-date.

In both systems:

Italicize book titles and use headline-style capitalization (capitalize all major words). This matches MLA’s approach.

In a footnote or endnote:

  1. Gabriel Garcia Marquez, One Hundred Years of Solitude (New York: Harper & Row, 1970), 42.

In the bibliography:

Garcia Marquez, Gabriel. One Hundred Years of Solitude. New York: Harper & Row, 1970.

Chicago follows the same italics-versus-quotation-marks rule as MLA and APA: full works get italics, parts of works get quotation marks.

Quick reference: all three styles compared

This table summarizes the differences that actually matter:

RuleMLAAPAChicago
Italicize book titles in textYesYesYes
Capitalization in textTitle caseTitle caseTitle case
Capitalization in reference listTitle caseSentence caseTitle case
Short works in text”Quotation marks""Quotation marks""Quotation marks”
Underline instead of italicsNoNoNo

The only real divergence is APA’s sentence case on the reference list. In the body of your essay, all three styles look the same.

Step-by-step: writing a book title in your essay

Follow these steps every time you include a book title:

Step 1: Identify your required citation style. Check your assignment guidelines or ask your instructor. Most English classes use MLA, social sciences use APA, and history classes use Chicago.

Step 2: Determine if the work is a full-length title or a short work. Books, films, and albums get italics. Chapters, articles, short stories, and poems get quotation marks.

Step 3: Apply title case capitalization. Capitalize all principal words. Leave articles, short prepositions, and conjunctions lowercase unless they start or end the title.

Step 4: Italicize the title. Use your word processor’s italic function. Never underline a title in a typed essay unless your instructor specifically requires it.

Step 5: Format the reference list entry. Follow the specific rules for your style guide. Remember that APA switches to sentence case in the reference list while MLA and Chicago keep title case.

Special cases and tricky situations

Not every book title fits neatly into the basic rules. Here are the situations that trip people up.

Titles within titles:

If a book title contains the title of another work, the inner title uses the opposite formatting. A book title that contains a shorter work’s title puts that shorter title in quotation marks and keeps the overall italics: Understanding “The Raven” and Other Poems.

Series titles:

A book series name (like Harry Potter) is not italicized. Individual book titles within the series are: Harry Potter and the Prisoner of Azkaban.

Sacred texts:

The Bible, the Quran, the Torah, and other sacred texts are neither italicized nor placed in quotation marks. They are simply capitalized. The same applies to legal documents like the Constitution.

Translated titles:

Include the translated title in brackets after the original: Die Verwandlung [The Metamorphosis].

Titles with subtitles:

Separate the title and subtitle with a colon and a space. Italicize the entire thing: Educated: A Memoir.

Common mistakes to avoid

  • Underlining in typed essays. Underlining is only acceptable for handwritten work. In any typed document, use italics.
  • Putting book titles in quotation marks. Quotation marks are reserved for short works like chapters, articles, and poems. Full book titles always get italics.
  • Forgetting to change capitalization in APA reference lists. The in-text title uses title case, but the reference list uses sentence case. This is the most common APA formatting error.
  • Inconsistent formatting throughout the essay. Pick one style and apply it to every single title in your paper. Switching between styles mid-essay is a guaranteed way to lose points.
  • Capitalizing every word. Articles, short prepositions, and conjunctions stay lowercase in title case unless they begin or end the title.

FAQ

Do you italicize book titles in every citation style?

Yes. MLA, APA, and Chicago all require italics for book titles in the body of your essay. The only variation is how capitalization works in reference lists and bibliographies.

Should I underline or italicize a book title?

Italicize. Underlining was the standard before word processors existed because typewriters could not produce italics. In any typed document today, italics are the correct choice.

How do I handle a book title at the beginning of a sentence?

Keep the italics and the standard capitalization. The first word of the title is capitalized regardless of whether it would normally be lowercase: A Farewell to Arms remains A Farewell to Arms at the start of a sentence.

What about ebook titles or self-published books?

The formatting rules are identical. Whether a book was published by a major house or self-published through a platform like Amazon KDP, the title still gets italicized in your essay.

Do I italicize book titles in informal writing?

Technically, italics are an academic and publishing convention. In casual emails or social media posts, you have more flexibility. But in any graded assignment, always italicize.

How do I cite a book title if I am writing about the book in my essay?

The first time you mention the book, include the full title italicized along with the author’s name. After that, you can use a shortened version of the title or just the author’s last name, depending on your citation style.