How to Write a Logline for Your Novel

A logline is your novel distilled into a single sentence: one line that captures who the story is about, what they want, and what stands in their way. It sounds simple, but writing a good one is hard, because it forces you to identify what your book is actually about at its core. A strong logline earns attention in a query, a pitch session, or a conversation with another writer. A weak one buries the story under vague description. This guide covers what a logline is, the formula that makes one work, how to write yours step by step, and the mistakes that flatten most first attempts.

The logline is a building block for other tools. For the full query, see Editor World's guide to writing a query letter, where a version of the logline usually opens the pitch.

Quick Answer: How Do You Write a Logline?

Write a logline in one sentence that names four things: the protagonist, their goal, the obstacle or antagonist, and the stakes. A reliable structure is: when something happens, a specific protagonist must do something, or else a consequence follows. Keep it to a single sentence, focus on the main plot rather than subplots, use specific and vivid language rather than generic terms, and lead with the story's central conflict. Avoid naming multiple characters, summarizing the whole plot, or ending on a vague promise. The test of a good logline is whether someone who hears it immediately understands what the book is about and wants to know what happens. Write several versions and choose the sharpest.

In This Guide

What a Logline Is and Why It Matters

A logline is a one-sentence summary of your story's core: the protagonist, their goal, and the central conflict. It comes from screenwriting, where a whole film has to be pitched in a line, and it has become a standard tool for novelists too. It is not a tagline (the marketing hook on a cover), and it is not a synopsis (the full plot summary). It sits between them: longer than a slogan, far shorter than a summary.

The logline matters because you will need it constantly. It usually opens a query letter, giving an agent the story in one line before the fuller pitch. You use it in pitch sessions at conferences, in conversations with other writers, and anywhere someone asks what your book is about. Beyond its practical uses, writing a logline clarifies your own thinking. If you cannot say what your book is about in one sentence, that difficulty often points to a story whose central conflict is not yet sharp enough. The logline is a diagnostic as much as a pitch.

The Logline Formula

Most effective loglines follow a version of this structure:

When [inciting incident] happens, [a specific protagonist] must [pursue a goal], or else [the stakes].

This is a starting frame, not a rigid template. The point is that a strong logline contains the same four elements in some order: a protagonist, a goal, an obstacle, and stakes. You can rearrange them to fit your story and to read naturally. What matters is that all four are present and that the sentence leads with conflict rather than setup. A logline that spends its words on backstory or world-building before reaching the conflict loses the reader before the hook lands.

The Four Elements

Every working logline carries these four pieces. If one is missing, the line usually falls flat.

  • The protagonist. Not by name, but by a defining trait or role that matters to the story. "A grieving detective" or "an ambitious junior lawyer" tells the reader who this is in a way a name cannot.
  • The goal. What the protagonist is trying to do. This is the engine of the plot, the want that drives the story forward.
  • The obstacle or antagonist. What stands in the way. Without opposition there is no story, and the logline has to make the central conflict clear.
  • The stakes. What happens if the protagonist fails. Stakes are what make the reader care. They can be external (a life, a city) or internal (a last chance at redemption), but they must be present.

Naming a defining trait for the protagonist is worth special attention. "A woman" is generic; "a disgraced surgeon" carries character, backstory, and conflict in two words. The right descriptor does a lot of work in a short sentence.

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How to Write Yours Step by Step

A logline is easier to build in stages than to write in one attempt.

  1. Name your protagonist by trait. Write a two or three word description that captures who they are in a way that matters to the story. Skip the name.
  2. State the central goal. Identify the one thing the protagonist is trying to achieve across the main plot. If several goals compete, choose the one that drives the book.
  3. Identify the main obstacle. Name what stands in the way, whether a person, a force, a situation, or the protagonist themselves.
  4. Define the stakes. Answer what happens if the protagonist fails. Make the consequence real and specific enough that a reader would care.
  5. Assemble and tighten. Combine the four into one sentence, then cut every word that is not pulling weight. Read it aloud. If it is a mouthful, simplify.
  6. Write several versions. Draft three to five loglines and compare. The best one is usually clearer and more specific than your first attempt, and comparing versions shows you which framing lands.

What Strong and Weak Loglines Look Like

The difference between a working logline and a flat one is almost always specificity and conflict. Consider a weak version:

A young woman goes on a journey and learns important things about herself and the world around her.

This could describe thousands of books. There is no specific protagonist, no clear goal, no obstacle, and no stakes. Now a stronger version of the same kind of story:

When her sister vanishes on the eve of an arranged marriage, a sheltered village healer must cross enemy territory to find her before the wedding seals an alliance that will start a war.

The second names a specific protagonist (a sheltered village healer), a clear goal (find her sister), an obstacle (enemy territory and a looming deadline), and real stakes (a war). It leads with conflict and it makes the listener want to know what happens. That is the target. Notice it is still one sentence, and every clause earns its place.

Common Logline Mistakes

Most first-draft loglines share a handful of problems. Check yours against these:

  • Too vague. Generic descriptions that could fit any book. Replace every general word with a specific one.
  • Too long. Trying to fit the whole plot into the line. A logline is one sentence about the core conflict, not a compressed synopsis.
  • Too many characters. Naming three or four people muddies the focus. Center the protagonist and the one key opposing force.
  • No stakes. A goal with no consequence for failure gives the reader no reason to care. State what is at risk.
  • Using character names. Names mean nothing to someone who has not read the book. Use a defining trait instead.
  • Leading with setup. Opening on world-building or backstory before the conflict. Lead with the central tension.

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From Logline to Polished Manuscript

A sharp logline gets attention. The manuscript behind it has to deliver. Once your logline opens a query and an agent asks for pages, those pages need to be as strong as the pitch that earned the request. A professional edit on your opening chapters catches the issues that quietly cost requests before an agent reaches the end. Editor World uses a choose-your-editor model, so you can browse editor profiles by genre experience and verified client ratings and pick an editor whose background fits your novel. See Editor World's novel editing services, use the instant price calculator to see costs upfront, or browse available editors directly. A free sample edit of your first 300 words is available so you can see an editor's work before committing.

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Frequently Asked Questions About Loglines

What is a logline for a novel?

A logline is a one-sentence summary of a novel that captures the protagonist, their goal, and the central conflict of the story. It comes from screenwriting, where a whole film is pitched in a single line, and it's become a standard tool for novelists. A logline isn't a tagline, which is a short marketing hook, and it isn't a synopsis, which is a full plot summary. It sits between them: longer than a slogan and far shorter than a summary. Its job is to make a listener understand what the book is about and want to know what happens next.

What is the formula for a logline?

A reliable structure is: when an inciting incident happens, a specific protagonist must pursue a goal, or else a consequence follows. This frame contains the four elements every strong logline needs: a protagonist defined by a trait rather than a name, a clear goal, an obstacle or antagonist, and stakes. The structure is a starting point rather than a rigid template, and you can rearrange the elements to read naturally. What matters is that all four are present and that the sentence leads with the central conflict rather than with setup or backstory.

How long should a logline be?

A logline should be a single sentence. It focuses on the core of the story, the main character, the central goal, and the primary conflict, rather than trying to summarize the entire plot. Keeping it to one sentence forces the clarity that makes a logline useful. If it runs to several sentences or tries to include subplots and secondary characters, it becomes a compressed synopsis instead and loses its power as a quick, sharp pitch. When a draft feels like a mouthful, the fix is usually to cut words and refocus on the central conflict.

What are the essential elements of a logline?

A logline needs four elements. The protagonist, identified by a defining trait or role rather than a name, like a grieving detective or a disgraced surgeon. The goal, which is what the protagonist is trying to achieve and which drives the plot. The obstacle or antagonist, which stands in the way and creates the central conflict. And the stakes, which are the consequences of failure and the reason a reader cares. Stakes can be external, like a life or a city, or internal, like a last chance at redemption, but they have to be present in the sentence.

Should I use character names in a logline?

No. Character names mean nothing to someone who hasn't read the book, so describe the protagonist by a defining trait or role instead. A generic phrase like "a woman" does little work, while a specific descriptor like "a disgraced surgeon" carries character, backstory, and conflict in a few words. Replacing a name with the right descriptor is one of the most effective ways to strengthen a logline, because it tells the listener who the protagonist is and hints at the story in the same short phrase.

What is the most common mistake in a logline?

The most common mistake is being too vague, using generic descriptions that could fit thousands of books and naming no specific protagonist, goal, obstacle, or stakes. Other frequent mistakes include making the logline too long by trying to compress the whole plot, naming too many characters and muddying the focus, omitting the stakes so the reader has no reason to care, using character names that mean nothing to a new listener, and leading with setup or world-building before the central conflict. The fix for most of these is greater specificity and a sharper focus on the main conflict.

Do I need a logline if I have a query letter?

Yes, and the two work together. A version of the logline usually opens a query letter, giving an agent the story in a single line before the fuller pitch that follows. The logline is also used well beyond the query, in pitch sessions at conferences, in conversations with other writers, and any time someone asks what your book is about. Writing a logline also clarifies your own understanding of the story, because the difficulty of stating a book in one sentence often reveals a central conflict that isn't yet sharp enough on the page. For the full query, see Editor World's guide to writing a query letter.

This article was reviewed by the Editor World editorial team. Editor World, founded in 2010 by Patti Fisher, PhD, provides professional editing and proofreading services for academic researchers, graduate students, businesses, and authors worldwide. BBB A+ accredited since 2010 with 5.0/5 Google Reviews and 5.0/5 Facebook Reviews. More than 140 million words edited for over 8,000 clients in 65+ countries. Multiple Gold and Bronze Stevie Award winner. Native English editors from the United States, the United Kingdom, and Canada. 100% human editing, no AI at any stage. Less than 5% of applicants are accepted to the editor panel. Recommended by the Boston University Economics Department. Page last reviewed June 2026.