Conversion rate optimization | January 6, 2021

What is The Rule of Three in Writing And How to Use It?

Antoine Bechara

Psychology has a special place in writing. The rule of three is especially powerful because people can easily remember things in groups of three. 

A book having three characters, a novel written in three parts, and a central story idea having three friends are all examples that reflect the potential of three in writing. 

The human brain is wired in such a manner that it can remember three things easily but gets confused if there are too many characters in the story. 

This article dives into the rule of three in writing, why it is so special, and how to use it to improve our writing.

What is The Rule of Three?

The rule of three is a writing principle based on the idea that the human brain processes information as patterns. 

rule of three examples


Three is the smallest number that humans remember as a set. 

Hence, anything that is written as three is more satisfying, humorous, and catchy.

Using the rule of three in writing takes advantage of the way our brain is wired to convey information and make it stick. Even the best marketing books follow this rule. 

Why is it so Special? 

Human brains are good at patterns and remember them more easily. The rule of three creates a comfortable pattern and makes information more memorable. 

Life, liberty, and the pursuit of happiness are the three important words in American history. It is even referred to as the most influential phrase in the history of the English language. When you add the rule of three to a phrase or a speech, it goes from good to great. 

You can use the rule of three to:

  • Deliver stand-out presentations
  • Prepare engaging content
  • Write catchy brand slogans

Now, let’s look at the importance of the rule of three in storytelling. 

Importance of Rule of Three in Writing 

Hence, it is widely used while writing a book, script, or even dialogues and slogans. 

For example:

  • Using the rule of three in a sales pitch or product presentation will help you stand out from the crowd and establish authority as a brand. Many brands use it for curating their marketing slogans. 
  • It also proves beneficial and essential in writing impactful, engaging, and quality content. A good piece of evergreen content is something that incorporates the potential of communicating your message with readers or viewers. 

Rule of Three and Storytelling 

You must be aware that a story is primarily divided into three main parts. The beginning, the middle, and the conclusion or climax. This division is important because the primary purpose of storytelling is also split into three main parts.

To strengthen the empathetic connection with the audience even further and to bring a natural and lucid tone to the storytelling, modern authors often resort to adopting AI-humanizer in the narrative process. This saves them time and labor while remaining in emotional contact with their audience, which is the most fundamental part of the author-reader relationship, clearly.

The first one is the beginning where you introduce the characters involved in the story with the help of a scene from their day-to-day life in order to attract the attention of the audience. 

The middle part is undoubtedly the longest one and involves a whole lot of twists and turns of the characters involved in the story. Then comes the climax, where the storytelling ends and all loose ends are tied up.

Hitting the heart of American storytelling, the “Rule of Three” isn’t just some fancy talk; it’s the secret sauce that makes stories stick, from sea to shining sea. It’s about crafting tales that echo through the canyons of our minds, leaving a mark as lasting as footprints in wet cement. When we weave this trio into our narratives, we’re not just spinning yarns; we’re lighting beacons that guide our audience through the fog, making every word count.

This strategy taps into the purpose of storytelling—to connect, to resonate, and to inspire action, all while keeping it as real as the ground beneath our feet. It’s this rule that helps transform simple stories into legends that are as enduring as the stars and stripes.

Many famous stories use the rule of three prominently. They include The Father, The Son, and The Holy Ghost, The Three Musketeers, Three Ghosts of Christmas Past, Three Little Pigs, and the Three Wise Men. 


Sticky Ideas And The Rule of Three 

Any piece of information presented in a group of three sticks to our heads instead of a cluster of items given together. 

Hence, try to write the information in clusters of three-pointers—for instance, advantages, process, and examples.


Some of the classic examples of the rule of three slogans stuck to our minds are mentioned below. 

  • Stop, look, & listen. 
  • Blood, sweat, and tears. 
  • Faith, Hope, and Charity. 
  • Mind, body, and spirit. 
  • I came, I saw, and I conquered. 

How to Use It?

Now that you understand the importance of the rule of three in writing let’s look at how to structure your content using the rule of three. 

Three Act Structure in Writing

The Three Act Structure is a writing model that divides the story into three parts, namely the setup, the confrontation, and the resolution.

First Act – The Setup 

A good write-up should have a legit set up to keep it intact and flowing. By setup, I mean the brief introduction of the characters involved in the story plot so the readers can connect with them during the story, and no confusion pops in. 

If you are writing a movie script or even a book, it is always a good idea to introduce your characters first. Show how their everyday life looks and the turning point or the incident that changes or kicks in the story plot. 

You should avoid writing monotonous and boring paragraphs describing the character. Always remember, your introduction is the most crucial part of your content. If you fail to improve customer engagement, all your efforts will go in vain. 

You have to plan your setup smartly and wisely and keep yourself in the shoes of your readers or viewers.

A good write-up should have a legit set up to keep it intact and flowing. Tools like ai book writing assistants can help authors craft engaging introductions and smoothly set the premise. AI writing tools analyze narrative flow and character development to provide constructive feedback for improving setup.

While manually planning effective introductions takes effort and wisdom, ai book writing solutions leverage data and algorithms to assess quality and recommend optimizations. By augmenting human creativity with AI, writers can systematize strengthening the critical setup of stories.

Rather than monotonous descriptions, ai book writing assistants suggest variating cadence and scenes to hook readers while seamlessly establishing contexts.

Second Act – The Confrontation 

Your story’s middle part is undoubtedly the longest and most challenging to get right. 

The second part is crucial because all the twists and turns of the story are going to take place here. 

For instance, Jessica’s team won the championship, but Adriana was not sad at all, even after losing. Because, somewhere deep down, she knew what she had won. 

They eventually start to meet quite often, and they experience the most intense passion-dip. 

The story takes a sharp turn when Adriana is diagnosed with stage 3 prostate cancer. 

Third Act – The Resolution

You don’t have to follow monotonous forms of ending or climax. 

Your climax should be intense and thought-provoking irrespective of whether your conclusion is happy or sad. 

An excellent story plot is something that holds the attention of the viewers till the very last moment and gives a climax that the viewers never saw coming. 

For instance, after Adriana was diagnosed with cancer, the doctors lose hope, and Jessica thought she was going to lose Adriana. 

But she never truly lost hope and continued the medical proceedings and left no stone unturned in taking care of the woman of her dreams. 

Adriana’s condition started improving, but the doctors said she would never be able to have kids. It was difficult for Jessica, but she accepted it, knowing that she at least had Adriana.

This is how you can follow a three-act structure in writing to make your story memorable. 


Tricolon is basically a rhetorical term that incorporates three parallel clauses, words, and phrases. It is also known as a triadic sentence. 

It can also be referred to as the combination of three lines, stanzas, paragraphs, or even chapters. 

One of the classic examples of Tricolon or triadic sentences is “Veni, Vidi, Vici” which is given by William Shakespeare in Julius Caesar. It basically means “I came, I saw, and I conquered. 


Tricolon is used to provide a sense of completeness and weight to the phrases. 

If some old wives tale is to be believed, using Tricolon phrases helps the readers remember the information almost effortlessly because it has a significant impact on the psychology of the audience. 

Many marketers, PR agencies, and paid media agencies thoroughly understand the importance of the Tricolon and also have used it as their marketing slogan. 

Let us consider some of the brilliant examples of Tricolon phrases or clauses that personify the overall meaning. 

  • Question – What are the three essential things that matter in property?

Answer – Location, location, and Location!

  • Abraham Lincon’s quote – of the people, by the people, for the people. 
  • Friends, Romans, countrymen, lend me your ears. 
  • Wine, women, and song.
  • Are you going to say the truth, the complete truth, and nothing but the truth?
  • Thinner, lighter, and faster – iPad 2
  • Every gun that is made, every warship that is launched, and every rocket fired – President Dwight Eisenhower in his speech to the American Society of Newspaper Editors. 
  • I mostly require three things in a man – handsome, ruthless, & stupid. 
  • I feel rather good about this. I think we’ve all arrived at an extraordinary place, eh? Spiritually, Ecumenically, and Grammatically. – Terry Rossio and Ted Elliott (Pirates of the Caribbean)
  • Buy it, Sell it. Love it – eBay. 
  • Power, Beauty, and Soul – Aston Martin


Hendiatris is a figure of speech that is used to emphasize three different words to express a single idea. 

It involves treating the two phrases of a group of three nouns and/or treating the third as a modifier. 

Many companies or marketers have sought help from Hendiatris and have created beautiful and impactful slogans or mottos that provoke unintended recall. 

Let us understand Hendiatris better with the help of a few examples. 

  • Duty, Honor, and Country – United States Military Academy.
  • Citius, Altius, Fortius – official slogan of the Olympics.
  • Fidelity, Bravery, Integrity – FBI (Federal Bureau of Investigation), United States 
  • Truth, Duty, Valour – Royal Military College of Canada
  • Willing, Able, Ready – Official motto of the Nigerian airforce
  • Peace, Land, and Bread- the official slogan of the Russian Revolution
  • Truth, Justice, and the American Way – Official American patriotic slogan. 
  • The Way, The Truth, The Life.
  • For thine are the kingdom, the power, and the glory. 
  • All the people, the nation, and the languages fell and worshipped the golden image that nebuchadnezzar the king had set up. 
  • Jesus says – I am the way, the truth, and the life. 

Final Thoughts 

Not just writing, three holds a special significance everywhere in the world like Newton’s three laws in Physics or the Rule of Thirds in designing. 

For writers, it is crucial to follow the rule of three because it helps the readers remember the characters in the story, and if people can remember the story, they will make it popular. 

Successful writers and marketers have used it for a long time. AI writing tools like Jasper AI are even using the rule of three to write compelling copy. It’s something we’ll see a lot more of in the future.

The Latin phrase ‘Omne trium perfectum’ means three is perfect for everything. You can use the power of three for writing marketing materials, presentations, video scripts, or jingles.

Happy writing in three. 


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