When writing titles, many writers wonder whether to capitalize the word is. Consider this: this guide explains the rules for capitalizing is in titles, providing clear examples and tips for proper title‑case usage. Understanding these conventions helps you create professional‑looking headlines that follow standard style guides and improve readability Easy to understand, harder to ignore..
The official docs gloss over this. That's a mistake.
Understanding Title‑Case Rules
Title case is a style of capitalization used for headings, book titles, article headlines, and other titles. Unlike sentence case, where only the first word and proper nouns are capitalized, title case capitalizes most major words, including verbs, adjectives, adverbs, and pronouns. The goal is to give each important word visual weight, making the title easier to scan at a glance.
Key Principles of Title Case
- Capitalize the first and last words of a title.
- Capitalize all nouns, pronouns, verbs, adverbs, and adjectives.
- Lowercase short prepositions (fewer than five letters), articles, and conjunctions unless they appear as the first or last word.
- Follow specific style‑guide requirements (e.g., APA, MLA, Chicago) when they differ from general rules.
These principles determine whether is should appear as Is or is in a title.
Should “Is” Be Capitalized in a Title?
The short answer is yes—is should generally be capitalized in a title because it functions as a verb. Verbs are among the word types that title‑case rules require to be capitalized, regardless of their position in the title It's one of those things that adds up. Simple as that..
Examples of Capitalized Is
- Is This the Real Deal?
- From Is to Was: A Study of Verb Tense Shifts
- Why Is the Sky Blue?
In each case, Is appears capitalized because it is a verb and follows the title‑case rule.
When Is Might Be Lowercased
Although rare, there are limited situations where is may remain lowercase:
- After a colon in some style guides that allow a “minor‑word” rule for subtitle portions.
- In all‑lowercase design styles where the entire title is rendered in lowercase for aesthetic reasons (common in modern web design).
- When following a specific style guide that explicitly treats is as a minor word (uncommon, but possible in certain niche publications).
These exceptions are the exception rather than the rule, and most writers will capitalize is in a title That's the part that actually makes a difference..
Common Exceptions and Special Cases
Below are the most frequent scenarios where the standard rule might be adjusted:
- Subtitle after a colon – Some guides (e.g., The Chicago Manual of Style) permit lowercasing of minor words in subtitles, so you might see “Main Title: is this the right path?”
- All‑lowercase branding – Brands sometimes choose a lowercase title style for a cohesive visual identity, e.g., “is this the future?”
- Poetry or creative works – Poets may deliberately keep is lowercase to maintain a specific rhythm or mood.
- Digital platforms – Social media platforms sometimes auto‑format titles; follow the platform’s guidelines when they conflict with standard title‑case rules.
Step‑by‑Step Guide to Capitalizing “Is” in Titles
- Identify the title‑case style you need to follow (APA, MLA, Chicago, or a company’s house style).
- Locate the word “is” within the title and note its position (beginning, middle, or end).
- Apply the verb rule – because is is a verb, capitalize it unless you are in a recognized exception (e.g., subtitle after a colon with a specific style guide).
- Check for any special conditions such as all‑lowercase branding or creative formatting that might override the standard rule.
- Proofread the final title to ensure consistency and that no other words violate the chosen style guide.
Following these steps ensures that is is handled correctly in virtually any title you create.
Scientific Explanation: Why These Rules Exist
Title‑case conventions have evolved to improve readability and visual hierarchy. Capitalizing verbs like is helps readers quickly identify the grammatical structure of a title, making it easier to parse complex phrases. From a cognitive perspective, capitalized words stand out, allowing the eye to group related concepts more
Some disagree here. Fair enough.
efficiently. At the same time, title-case rules create consistency across books, articles, reports, and digital content. When every writer applies the same basic principle—capitalizing major words and verbs—titles become easier to scan, compare, and understand That alone is useful..
That said, grammar rules are only one part of the decision. Context, audience, and formatting expectations also matter. A scholarly paper, a marketing headline, and a minimalist website may all treat capitalization differently depending on their goals Practical, not theoretical..
Practical Examples of Capitalizing “Is” in Titles
Here are some common title formats showing how is is usually handled:
| Title | Capitalization |
|---|---|
| What Is Artificial Intelligence? | Correct in title case |
| The Question Is Whether We Are Ready | Correct in title case |
| Where Is the Evidence? | Correct in title case |
| Why Is Sleep Important? | Correct in title case |
| How Is Technology Changing Education? |
In each example, is is capitalized because it functions as a verb. Even though it is a short word, it is not treated like an article, conjunction, or preposition.
“Is”
Is Not Capitalized: Common Exceptions
While is is typically capitalized in title case due to its role as a verb, there are notable exceptions where it may remain lowercase:
| Title | Capitalization |
|---|---|
| what is artificial intelligence? | Lowercase in sentence case |
| why is sleep important? Also, | Lowercase in sentence case |
| the question is whether we are ready | Lowercase in sentence case |
| where is the evidence? | Lowercase in sentence case |
| how is technology changing education? |
Short version: it depends. Long version — keep reading.
These examples reflect sentence case, where only the first word and proper nouns are capitalized. This style is common in digital platforms, blogs, and informal writing.
Creative and Branding Considerations
In branding or creative titles, writers might intentionally lowercase is for stylistic effect. For instance:
- the future is now
- what is next
Such choices prioritize tone and visual appeal over strict grammatical rules.
Final Thoughts
Capitalizing is in titles depends on the chosen style guide and context. That said, as a verb, it should generally be capitalized in title case, but exceptions exist in sentence case or creative formats. Always consult the relevant guidelines and maintain consistency throughout your document.
Beyond the verb is, many other short words often sit at the crossroads of capitalization conventions. Words such as be, have, do, will, and even adverbs like now can appear either capitalized or left lower‑cased, depending on whether you follow title‑case, sentence‑case, or a specialized format. Understanding these nuances helps you choose a style that feels natural to both readers and the publisher you serve.
Not the most exciting part, but easily the most useful.
Small Function Words in Title Case
| Word | Typical Title‑Case Treatment | Reason |
|---|---|---|
| Be | The Art of Being | Capitalized when it’s a main noun phrase; otherwise lower‑cased. Now, |
| Have | How to Have Success | Same logic – treated as a gerund functioning as a noun. In practice, |
| Do | A Guide to Doing Well | Often lower‑cased unless it starts the line. |
| Will | What Will Happen Next | Capitalized when it introduces a clause that is independent. |
| Now | The Moment Now | Can be capitalized for emphasis or left lower‑cased for simplicity. |
Notice the pattern: when a short word appears after another word that begins the title, most style guides keep it lower‑cased unless it is the very first element. This mirrors the rule for articles, conjunctions, and prepositions. That said, many designers deliberately raise certain functional words to create a rhythmic balance, especially in branding or subtitle lines Turns out it matters..
Sentence‑Case Flexibility
Sentence case—used by countless online publishers—treats almost every word except the first as lower‑cased, regardless of length. Under this convention, the examples above would read:
- the art of being → the art of being (only “the” is capitalized)
- how will things change → how will things change
- where do we begin → where do we begin
If a particular platform demands stricter adherence to formal rules (for example, academic journals), you would revert to title case and re‑capitalize those functional words accordingly.
Tools That Automate the Decision
Modern word processors and title‑generation services often embed rule sets that automatically decide which words get capitalized. Popular options include:
- Microsoft Office’s “Title Case” feature – lets you toggle between “Full” (title case) and “Sentence” modes.
- Grammarly and ProWritingAid – flag non‑capitalized function words in titles and suggest corrections based on selected style guides.
- Online title‑formatting generators – input a draft title and select the appropriate style (APA, Chicago, MLA) to receive a corrected version instantly.
While these tools can save time, they are not infallible. Context matters: a scientific abstract may require All Caps for headings, whereas a travel blog might prefer a clean, all‑lowercase approach to keep the tone conversational.
Consistency Across Related Elements
When you publish a series of works—such as a book series, a podcast episode list, or a corporate newsletter—maintain a single capitalization policy throughout. Inconsistent treatment of is or any other word can confuse readers and undermine professionalism. Create a quick reference sheet for your team that lists:
- Primary style (title case, sentence case, or a hybrid).
- Which short function words are always uppercase.
- Which ones are optional and can be lower‑cased.
Referencing this cheat‑sheet during editing rounds ensures that the visual hierarchy stays uniform, reinforcing readability across the entire publication suite.
Bringing It All Together
The journey from a raw idea to a polished title involves several layers of decision‑making. You start by identifying the core message, then choose a structural framework (headline, subtitle, sub‑headline). At that stage, the handling of is—and of similar tiny words—must align with both the target medium and the broader editorial voice.
- Title case: capitalize principal words, including verbs like is.
- Sentence case: leave all minor words lower‑cased, except the first letter.
- Special contexts (branding, design): feel free to invert the usual rule for aesthetic impact.
By consciously applying these principles—and by keeping a consistent style guide in sight—you’ll produce titles that are clear, engaging, and technically sound. The ultimate goal isn’t merely to follow a rulebook; it’s to craft language that invites the reader to pause, absorb, and move forward with confidence.
