The Iceberg Principle: What it is and How to Use it to Write

Picture a kitchen at 11 p.m. A woman rinses one mug, then another, though nobody has used the second. Her husband stands in the doorway holding his car keys and says he’ll be back soon. Neither of them mentions the phone call, the lawyer, or the word they both swallowed at dinner. That whole scene runs on what isn’t said, and you, reading it, already feel the weight of it.

This is the engine behind the iceberg principle, also called the theory of omission. Writers who master it produce prose that feels bigger than its word count; writers who don’t produce pages that explain everything and leave the reader nothing to do. Many of us were taught the opposite in school: state your point, support your point, restate your point. That advice builds clear essays. It also builds lifeless stories, flat memoirs and dialogue where characters announce their feelings like a weather report. Show, don’t tell is the slogan; the iceberg is the mechanism that makes the slogan work.

Here’s the odd part.

The principle is also a small lesson in psychology, since readers fill gaps with their own inferences, and those inferences hit harder than any statement.

This guide explains the iceberg principle and how to use it to write: where it came from, why it works on the mind, and a practical method for building it into your own stories, essays and personal writing.

Fair warning: I’ll puncture a few popular myths along the way, including one about Freud.

What is the iceberg principle in writing?

The iceberg principle is the idea that a story should show only a small visible portion of what the author knows, leaving the rest beneath the surface so the reader senses it without being told. Roughly one-eighth of a real iceberg floats above the waterline, and the writer’s craft is deciding which eighth to show.

The idea belongs to Ernest Hemingway, who laid it out in his 1932 book on bullfighting, Death in the Afternoon. His claim, paraphrased: if a writer knows enough about the subject, he can leave out things he knows, and a reader who is paying attention will feel those omitted things as strongly as if they’d been written down. The dignity of an iceberg’s movement, he added, comes from the fact that most of it stays under water. In A Moveable Feast, published after his death, he described leaving the war out of a short story about a soldier recovering in the woods, on purpose, and trusting the reader to feel it anyway.

Three words matter in that claim: know, omit and feel.

The writer must actually know the material, which means the backstory exists whether or not it’s printed. Then the writer cuts, deliberately, not out of laziness. And the reader’s reward is an emotional response that arrives by inference, which tends to feel more like discovery than instruction.

Notice what the principle isn’t. It isn’t vagueness. A vague story hides things because the author doesn’t know them; an iceberg story hides things because the author does. Readers can tell the difference within a page or two, usually without being able to say how.

It also isn’t a rule about short sentences, though people often assume so because Hemingway’s style was sparse. Plenty of long, ornate, winding prose carries an iceberg underneath it. Think of a character who talks for a full page about the weather while plainly avoiding one subject. The sentences are long; the omission is enormous.

Why does it matter outside fiction? Because nearly all persuasive and moving writing, including memoir, speeches, eulogies, ad copy and personal essays, depends on what the writer trusts the audience to infer. Over-explaining signals distrust, and readers resent being distrusted.

A quick test: pick any paragraph you’ve written about a feeling. Delete the sentence that names the emotion. Does the paragraph still carry it? If yes, you’ve got an iceberg. If the feeling vanishes, there was only tip.

Did Freud invent the iceberg? Sorting the myth from the facts

No. The iceberg picture of the mind is widely credited to Sigmund Freud, but there’s no sign he drew or described an iceberg himself; the image is a later popularization of his ideas, which is why you’ll see it on a thousand introductory slides.

Here’s what Freud actually proposed. In his early work he sketched a topographical model of the mind with three regions: the conscious (what you’re aware of now), the preconscious (what you can call up if you try), and the unconscious (material kept out of awareness, often because it’s distressing). In The Ego and the Id (1923) he added the structural model of id, ego and superego, and included a simple diagram that looks nothing like an iceberg. The famous floating-ice image seems to have come from teachers and textbook illustrators who needed a picture, and it stuck because it’s a good one.

So why mention it in an article about writing? Because the two icebergs rhyme, and the rhyme explains why the technique works.

Freud’s central claim was that much of what drives behavior sits outside awareness yet leaks out in slips, jokes, dreams and odd gestures. Fiction mimics that leakage. A character who says “I’m fine” while arranging the same fork three times is leaking. The writer doesn’t need to endorse psychoanalysis to use this: modern psychology disagrees with Freud on plenty (his claims about repression and sexuality are heavily contested, and many of his ideas can’t be tested), yet the simple observation that people don’t announce their deepest motives still holds up in everyday life.

There’s a second distinction worth keeping. Hemingway’s iceberg describes a technique for writers; Freud’s describes a theory of the mind. One is a craft choice and the other is a scientific claim, and only one of them has survived reasonably intact.

Many websites blur the two into a single “iceberg theory” with Freud and Hemingway shaking hands. They never did, and neither man used the other’s version. I’d rather you know that before repeating it at a dinner party.

Writers sometimes borrow Freud’s layers as a planning device: the visible words, the character’s conscious intent, and the unconscious drive underneath. Treat it as a metaphor, not a diagnosis, and it can be useful.

How does an iceberg story actually work on the page?

It works by giving the reader concrete surface details, such as actions, objects and speech, while the real subject stays unnamed. The reader notices the gap between the two and does the interpretive work.

Take Amara, 29, an illustrative writer drafting a story about two siblings clearing out their late father’s apartment. Her first version has a line where the brother says he feels guilty that he didn’t visit more. It’s accurate. It’s also dead on the page. In the second draft, he spends ten minutes carefully wrapping a chipped tea set that neither of them wants, and when his sister suggests donating it, he says the packing tape is running low and leaves to buy more. No guilt is named. The reader supplies it.

Why is the second version better? Because it has three features that show up in nearly every successful iceberg scene.

First, an objective correlative, a term from early twentieth-century literary criticism for an object or situation that evokes an emotion without naming it. The tea set carries the grief. Second, displacement: the character talks about tape because he can’t talk about his father. Third, a pressure point, a moment where the hidden subject almost surfaces and then retreats.

Short stories built this way are often described as stories about nothing that turn out to be about everything. The classic example, in many creative-writing classrooms, is a story of two people at a rural train station making small talk about drinks, scenery and a medical procedure that is never named. Readers argue about it for decades. That argument is the iceberg doing its work: the unseen part is big enough to sustain years of debate.

It’s worth separating surface from subject. The surface is what happens: a conversation, a trip, an argument over dishes. The subject is what the story is really about: fear of commitment, grief, a marriage quietly ending. In weak writing, the surface and the subject are the same thing, which is why the page feels thin. In strong writing, they pull in different directions, and the tension between them is where the reader’s attention lives.

Try this on a story you know well. Write one sentence for what happens and one sentence for what it’s about. If the two sentences are nearly identical, you probably haven’t built an iceberg yet.

And what about description? The same logic holds. A room described through the one thing out of place (a child’s drawing taped upside down, a calendar stuck on a month long gone) says more than a paragraph about the decor.

Why does the reader’s mind fill in what you leave out?

Because human beings are habitual mind-readers. We constantly infer what others think, want and feel from scraps of behavior, and fiction recruits that habit.

Psychologists call this ability theory of mind: the capacity to attribute beliefs, intentions and emotions to other people. Literary scholar Lisa Zunshine, in her 2006 book Why We Read Fiction, argues that stories keep our theory of mind busy, especially when characters misread each other or hide what they feel. Readers track who knows what, who’s pretending and who’s fooled, often several layers deep. Her argument is a theoretical one built on cognitive science, and not every claim in it has been tested experimentally, but it captures something familiar. Reading a good scene feels like detective work.

That’s the whole mechanism. Leave a gap, and the reader’s mind rushes in.

There’s also an effort effect worth mentioning, though the evidence is more suggestive than settled. We tend to value conclusions we reach ourselves more than conclusions handed to us, and we remember material we’ve processed actively better than material we’ve passively received. Writers have known this for centuries without citing a single experiment; teachers call it the difference between a lecture and a discussion.

Imagine Raj, 58, a retired engineer who has started writing short fiction. His early drafts explain every motivation, because he’s used to technical documentation where ambiguity gets people hurt. His writing group tells him the stories feel like manuals. Then he rewrites one scene so that a father only straightens a stack of mail while his daughter talks about moving abroad. The group goes quiet. Somebody says, “Oh no.”

That “oh no” is the target. It signals inference, not instruction.

Limits apply, of course. Readers differ in background, attention and culture, and an omission that lands for one audience can slide right past another. A reader unfamiliar with the context may not see the emotional meaning of a gesture that’s loaded in your community. Cross-cultural readers (and many of us read in a second language) may need slightly stronger anchoring than a native reader does. So the iceberg isn’t a promise that everyone will feel the same thing; it’s a bet that most of your intended readers share enough knowledge to complete the picture.

Experienced editors describe this as calibrating the inference distance: how far the reader must leap from clue to meaning. Too short, and the writing is heavy-handed. Too long, and the reader gives up or invents something you never meant. Where would you put your last story on that scale?

What is subtext, and how do you write dialogue that carries it?

Subtext is the meaning beneath a character’s words: what they want, fear or feel but don’t say outright. Dialogue with subtext means the line’s literal content and its real content differ.

Screenwriting teacher Robert McKee, in his book Story, treats subtext as the engine of convincing scenes, arguing that people rarely say what they truly think when something important is at stake, so characters who do so ring false. He frames it as a gap between the text (what’s said and done) and the true feeling underneath. You don’t have to adopt his whole system, which some writers find rigid, to take the lesson: real conversation under pressure is oblique.

Think about the last time you argued with someone you love. Was the fight really about the dishes?

A few reliable ways to build subtext into dialogue:

• Answer a different question. One character asks if the other is coming to the wedding; the reply is about the parking.
• Use deflection and humor to dodge the real topic, since people joke hardest around what hurts.
• Let silence and action speak: a pause, a glance at the phone, a drawer closed a little too firmly.

Now a quick before-and-after in prose (not a quote, just a description). Before: a daughter tells her mother she resents being the only one who ever visits. After: she arrives with groceries, notices her brother’s name on the fridge calendar as a visit that never happened, and asks whether the milk is still the brand her mother likes. Same resentment, one eighth visible.

Common errors? On-the-nose dialogue is the main one, where characters describe their feelings in complete, polite sentences (“I’m angry because you abandoned me”). Real people rarely talk like therapy transcripts, except in actual therapy. Another error is the opposite: making dialogue so cryptic that no reader could reconstruct the buried meaning. A subtext needs anchors, one or two concrete clues placed earlier in the story so the reader has something to work from.

Read your dialogue aloud with a trusted friend. Whenever they wince, check whether a character is explaining their inner life to the other person in a way a real person wouldn’t.

Do you need to know the whole backstory before you start?

Yes, at least privately, and probably more than you’ll ever print. That’s what the submerged part is made of.

The theater world got there first. Konstantin Stanislavski, the Russian director behind modern acting training, taught actors in An Actor Prepares to build the inner life of a character (history, wants, relationships) so that their stage behavior grew from something real. The thoughts running underneath the lines became known as subtext in the acting tradition he shaped. Actors don’t recite biographies on stage; they carry them. The audience feels the weight without receiving the file.

Writers can do the same through pre-writing exercises. A few worth trying:

1. Write a one-page character biography you’ll never publish: childhood, money situation, humiliations, one thing they’d never admit.
2. List five objects the character owns and the reason each one matters to them.
3. Answer the question: what does this person want right now, and what would they never do to get it?
4. Write the scene before the one you’re drafting, even if it never appears.
5. Note a secret that only you know, and decide which single gesture might hint at it.
6. Decide what the character gets wrong about themselves.

That last one is underrated. Characters, like people, tend to hold flattering, slightly false stories about themselves, and the gap between self-image and behavior is rich territory for omission.

A caution, because enthusiasm can mislead. Backstory isn’t a place to hide. Some writers spend weeks building elaborate worlds and never write the scene. Treat the research as scaffolding: sufficient, then stop.

Consider Tomás, 40, an illustrative case. He’s writing a story about a bus driver on the last shift before retiring. He invents the man’s divorce, an estranged daughter, a fear of heights, a habit of counting stops under his breath. In the final draft only the counting survives, plus one moment where he lets a teenager ride free without comment. Everything else is gone, yet readers sense a man with a past.

Notice that Tomás didn’t lose the work by cutting it. The cut material is exactly what gives the surviving detail its charge.

You’ll hear this advice repeated until it feels like a cliché, because it keeps proving right: know ten times more than you show.

How do you build your own iceberg, step by step?

Start with the hidden subject, not the visible scene. Decide what the piece is really about, then design a surface that never says so directly.

Here’s a method I’d actually recommend, tested on many drafts:

1. Name the buried subject in one plain sentence for your own eyes only (“This story is about a man who can’t forgive his brother”).
2. Write the explicit version first, a full draft where everything is said. It feels clumsy, but it clears your head.
3. Underline every sentence that names an emotion (“she felt abandoned”, “he was jealous”).
4. Replace each one with an action, an object or a line of dialogue that carries the same feeling indirectly.
5. Cut the explanation that follows each beat, since after a good gesture explanations tend to deflate it.
6. Test it on a cold reader. Ask what they think the story is about, and don’t hint.

Step six carries the most information. If your reader names the buried subject unprompted, you’ve struck the right balance. If they miss it entirely, add one more anchor. If they name something wildly different, look at what you’ve actually put on the page; readers are rarely wrong about the page.

The explicit-draft step surprises people. Many writers try to produce subtext on the first pass and end up with fog. Writing the plain version first gives you a map of the submerged material, and cutting from a full draft is far easier than guessing from an empty one.

A word on selection: choose details that do double duty. A detail should work on the surface (it fits the scene) and below it (it carries emotion). A cold cup of coffee on a kitchen counter is background; a cup of coffee made for a person who has since left is a statement.

What about essays and nonfiction? The same method applies. Instead of announcing that a workplace was toxic, show the Sunday-night stomach drop, the group chat that went quiet when you joined, the manager’s habit of scheduling reviews at 5:55 p.m. The reader reaches the verdict before you state it, and when you do state it, it lands as confirmation.

Give yourself permission to write badly in step two. Nobody is watching.

How much should you cut, and what does Stephen King say?

Cut more than feels comfortable, but stop before the reader gets lost. Most first drafts carry 10 percent or more of material that does nothing.

That figure comes from Stephen King, who in his memoir of the craft, On Writing, offers a simple formula: a second draft should be the first draft minus ten percent. It isn’t a law of nature, and a fussy poet might disagree, yet as a rule of thumb it’s useful because it forces you to find the flab. If you can’t find a tenth of your draft to cut, you probably haven’t looked hard enough, or you’re a rare, lean writer; the latter is far less common than writers like to imagine.

Cutting is where the iceberg gets made, but it’s also where it gets wrecked. Remove the wrong things and the reader sinks into confusion instead of feeling subtext.

Signs you’ve cut too much:

• Readers can’t say who wants what. If motives are invisible even in outline, the iceberg has no mass.
• Beta readers ask basic factual questions, such as who died or where the scene is set.
• Scenes feel interchangeable, because the particular details that made them distinct were removed.
• Emotional beats arrive without setup, so the climax feels arbitrary.
• Your own memory is the only glue. If you understand it because you remember the draft you cut, the page doesn’t hold it.

Signs you haven’t cut enough are easier to spot: repeated information, characters who restate each other, paragraphs ending with a sentence that explains the previous one.

My own rule is blunt. Cut explanations before you cut images, and cut adverbs before you cut verbs. Ending a scene one beat early almost always improves it; most scenes limp on past their natural stopping point. Then ask yourself, as an editor would, whether anything in the final sentence of the paragraph was already established in the one before.

Keep a “cuttings” file. Moving a deleted paragraph there instead of the trash eases the pain, and you’ll rarely open it again.

Can writing what you leave out help you heal?

Sometimes the reverse is true: writing about what you usually avoid can improve wellbeing, which sets up an interesting tension with the iceberg. The two are different tasks, and it helps to keep them apart.

The research on expressive writing comes mostly from psychologist James W. Pennebaker. In a well-known 1986 study with Sandra Beall, college students wrote for about 15 minutes a day on four consecutive days, either about a traumatic experience (including their emotions) or about a trivial topic. Those who wrote about trauma with their feelings were later less likely to visit the campus health center than control writers. Later studies have been mixed: effects tend to be modest, vary by population, and don’t replace therapy. Still, the finding that putting difficult experience into words can lighten its load has held up well enough to inspire decades of follow-up research.

So should you pour everything onto the page? In private, yes, if it helps. That’s a therapeutic draft, and nobody has to read it. Think of it as the full sea beneath the iceberg: you don’t publish it, but you’re better off for having surveyed it.

Public writing is another matter. A personal essay that dumps raw pain without shaping it often overwhelms the reader, who can’t tell what to feel or where to stand. The craft move is to write the unfiltered version first, put it away, and later return with an editor’s eye to decide which eighth belongs on the page.

Consider Lena, 22, an illustrative student in shared housing who writes about her parents’ divorce. Her first pages are a flood. Her second version contains one image: two toothbrushes in a cup, one of them quietly removed after a trip home. Her classmates cry; she says it’s the only part that felt true.

A practical boundary matters here. If writing about an experience floods you with panic, flashbacks or numbness rather than relief, stop and consider talking with a therapist or psychologist who works with trauma. Expressive writing isn’t a safe fit for everyone in every season.

The healing draft and the published draft can come from the same events and still be different documents. Mixing them up is how people end up regretting what they posted.

When you reread an old private journal, which pages could you imagine showing a stranger, and what would you change?

How does the iceberg shape memoir and the stories we tell about ourselves?

Memoir is an iceberg by necessity, because no one can include a whole life. What you choose to show, and what you leave unsaid, shapes both the reader’s view of you and your own.

Psychologist Dan P. McAdams has spent decades studying narrative identity, the internalized, evolving life story a person builds to make sense of who they are and how they became that person. In The Stories We Live By (1993), he argues that we construct personal myths with characters, turning points and themes. His later work on redemptive stories, in which suffering leads to growth, has linked certain narrative patterns to better wellbeing in some studies, though that research is correlational and shouldn’t be read as a prescription to force a happy ending onto real pain.

For writers, the point is concrete: selection is authorship. Two people can live the same childhood and write two different memoirs, and neither would be lying. The unseen portion isn’t deception; it’s design.

A few principles keep memoir honest and effective. Omit for the reader’s sake, not to hide the truth, because a detail that changes the meaning of the story can’t be left out without misleading. Protect other people: your story involves relatives, exes and coworkers who didn’t consent to appear, and omission can be an ethical choice. Trust one precise detail over three vague ones. And let the narrator be unreliable on purpose only when you’re signaling it to the reader.

Imagine Diego, 63, writing a short memoir for his grandchildren about leaving a factory job. He wants to include the layoffs, the long unemployed winter, and a conflict with his brother. After a few drafts he keeps one scene: sitting in a parked car outside the factory gates for forty minutes after his last shift, engine off. The family understands the rest.

A hard question for any memoirist: what are you leaving out because it doesn’t serve the story, and what are you leaving out because it’s uncomfortable? Only one of those is craft.

Both answers deserve a look. Writers who skip the second question tend to produce smooth, forgettable books.

FAQs about the Iceberg Principle in Writing

What is the iceberg principle in simple terms?

It’s the idea that a story should show only a small part of what the writer knows, so the reader senses the rest. About one-eighth of an iceberg sits above water, and the rest supports it from below. In practice, you know a character’s history, fears and secrets, but you print only a few revealing details, such as a gesture, an object or an awkward line of dialogue. The reader notices the gap and fills it in. Ernest Hemingway described the idea in his 1932 book Death in the Afternoon, and it’s also called the theory of omission.

Did Hemingway or Freud come up with the iceberg theory?

Hemingway came up with the writing version. The picture of the mind as an iceberg is often credited to Freud, but there’s no evidence he used that image; it appears to be a later popularization of his ideas about conscious and unconscious thought. People often merge the two, which causes confusion. Hemingway’s iceberg is a technique for writers, while Freud’s mind model is a psychological theory, much of which is disputed today. If you’re citing either in an essay or presentation, keep them separate and credit each accurately.

How do I show instead of tell using the iceberg method?

Replace named emotions with concrete behavior. Instead of writing that a character is jealous, show him scrolling a friend’s photos at 2 a.m. and then deleting a congratulatory message he’d typed. Choose details that work on two levels: they belong naturally in the scene, and they also carry feeling. Once you’ve drafted the action, cut the sentence that explains it. A useful check is to underline every word that names an emotion and see how many you can swap for an image or action without losing meaning. Some of them can stay; tell when it’s efficient, show when it matters.

Can the iceberg principle be used in nonfiction and business writing?

Yes. Essays, speeches, memoir and even marketing copy use it, though the dosage differs. In a personal essay, a single sharp detail can carry what a paragraph of explanation would. In business writing, where clarity usually comes first, the principle applies more narrowly: leave out background the audience already knows and trust them with the implication. What you shouldn’t do is hide information a reader needs to act on, such as deadlines, costs or risks. For instructions and technical documents, state everything plainly. Subtext belongs where interpretation is part of the pleasure.

Why does my writing feel flat when I leave things out?

Usually because there’s nothing underneath. Omission only works when you know the material and the reader can pick up clues. If you cut explanations but kept only generic details, the page has no pressure. Another cause is removing orientation facts (who, where, when) along with the emotional explanation. Try writing the full explicit draft first, then cut selectively, keeping the most specific and surprising details. Show it to a reader and ask what they think is going on. If they miss the point completely, add one anchor clue; if they get it immediately, you may be able to cut more.

How much of a story should be left unsaid?

There’s no fixed ratio. The one-eighth image is a metaphor, not a measurement. A better guide is whether a thoughtful reader can reconstruct the key emotional situation from what’s on the page. Stephen King’s rule of cutting about ten percent between drafts is a useful practical benchmark, though it’s about trimming excess, not about subtext as such. Different genres tolerate different levels of ambiguity: a literary short story can leave a lot open, while a mystery or thriller needs firm plot logic. Test with readers, and adjust to your audience.

Is expressive writing the same as using the iceberg principle?

No. Expressive writing, studied by James Pennebaker and others, means writing openly about difficult experiences, usually privately, because doing so may improve wellbeing for some people. The iceberg principle is a craft choice about what to show a reader. They can work together: you might write a raw, private version first and then shape a public version that reveals only select details. The research on expressive writing shows modest and mixed effects, and it isn’t a substitute for treatment. If writing leaves you distressed rather than relieved, consider stopping and speaking with a mental health professional.

What books show the iceberg principle best?

Hemingway’s short stories are the standard examples, particularly the ones about couples who talk around a decision and a soldier recovering in nature. Beyond him, many writers in different traditions use omission skillfully, including short story writers who focus on ordinary domestic scenes where a single object carries the weight. For craft guidance, books such as Robert McKee’s Story on subtext and Stephen King’s On Writing on revision are practical companions. Reading widely and noticing where you feel something the text never states is the best training; keep a notebook of those moments and study how they were built.

Bibliography

• Freud, S. (1961). The ego and the id. In J. Strachey (Ed. & Trans.), The standard edition of the complete psychological works of Sigmund Freud (Vol. 19, pp. 1-66). Hogarth Press. (Original work published 1923)
• Hemingway, E. (1932). Death in the afternoon. Charles Scribner’s Sons.
• Hemingway, E. (1964). A moveable feast. Charles Scribner’s Sons.
• King, S. (2000). On writing: A memoir of the craft. Scribner.
• McAdams, D. P. (1993). The stories we live by: Personal myths and the making of the self. Guilford Press.
• McKee, R. (1997). Story: Substance, structure, style, and the principles of screenwriting. ReganBooks.
• Pennebaker, J. W., & Beall, S. K. (1986). Confronting a traumatic event: Toward an understanding of inhibition and disease. Journal of Abnormal Psychology, 95(3), 274-281.
• Stanislavski, C. (1936). An actor prepares (E. R. Hapgood, Trans.). Theatre Arts Books.
• Zunshine, L. (2006). Why we read fiction: Theory of mind and the novel. Ohio State University Press.