How to Write a Prologue: When You Need One and When to Skip It (2026 Guide)

What is a prologue and what is it for?

A prologue is a piece of story that comes before chapter one and is separated from it by time, place, viewpoint or all three. It might show a murder twenty years before the main plot, a character who will not appear again until the end, or a short scene from a distant era that explains why the world is the way it is.

Its job is narrow. A prologue earns its place by giving the reader something the main narrative cannot give as well: a dramatic question, a sense of threat, or context that works better as a scene than as later explanation. If it does none of those, it is decoration.

A prologue is not an introduction, a foreword or a place to explain your world. Those belong elsewhere, or not at all. The test is simple: it should read like a story, with a character, a moment and some tension, not like notes.

Do you actually need a prologue?

Most novels do not. A useful test is to remove the prologue and call your current chapter one. If the book still opens well and the reader loses nothing essential, the prologue was optional, and cutting it usually makes the opening stronger. Many authors and editors recommend this check because the first pages are where a reader decides whether to continue.

A prologue is more likely to be justified when the opening event happens at a different time or place from the main story and cannot be woven in later, when the reader needs to know something the protagonist does not, or when a short, vivid scene sets the genre promise better than a quiet first chapter. Thrillers, mysteries, horror and fantasy use them most often, though none of those genres requires one.

Be wary of three motives. Do not add one to hold back a slow chapter one, because the fix is to improve chapter one. Do not use one to dump backstory. And do not add one just to look like the books you admire. If you are unsure, write it, then try the book both ways with a trusted reader. Our guide on how to write a first chapter covers what the opening of the main story needs to do either way.

What types of prologue work?

A few forms come up again and again because they solve real problems.

• The cold open: a tense scene, often a crime, an escape or a discovery, that starts the central question before the main story begins. Common in thrillers and mysteries.
• The past event: a scene from years or centuries earlier that explains the origin of the curse, the secret or the war. Common in fantasy and historical fiction.
• The other viewpoint: a scene from a villain, a victim or a minor character that the reader sees and the protagonist does not, creating dramatic irony.
• The frame: a short scene set at the end or in the future, after which the book rewinds. Use this carefully, because it can deflate suspense if it reveals too much.

Whichever you choose, keep it a real scene with a person who wants something and an obstacle. A prologue that only describes a landscape or a legend gives the reader nothing to hold on to.

How do you write a prologue step by step?

Start by naming the single question it should raise. Who did this? What is that thing? Will she survive? Write that question down and build the scene toward it. Then pick one viewpoint character and one moment, and drop the reader into it with a concrete action and sensory detail rather than a summary of events.

Keep the stakes immediate. The reader should feel danger, curiosity or loss within the first few lines, and the scene should end on an unresolved note, not a neat conclusion. Hold back explanation. A prologue works because it leaves gaps, and the main story fills them over time. Give only the facts the reader needs to follow the moment itself.

Finally, link it to the book. The prologue should echo something in the main plot: a object, a name, an image, a theme. Readers should feel the connection click, ideally later rather than at once. If you want a rough starting point, the Prologue Generator at cruxone.io/tools can suggest scene ideas, which you should then rewrite in your own voice and for your own story. A Logline Generator can also help you pin down the central question first.

How long should a prologue be?

Shorter than a normal chapter, almost always. Many prologues run from a few hundred words to a couple of thousand. There is no fixed rule, but a prologue that runs as long as a full chapter is usually a sign that it is really chapter one and should be labelled and placed accordingly.

Length affects the sample readers see. On retailer pages, the free preview often covers the front matter and the opening of the book, so a long prologue can use up much of what a browsing reader sees before they meet your protagonist. Keep that in mind when deciding how much to put up front. You can check how your words translate to pages with the Word Count to Page Count Converter, and the Chapter Length Calculator helps keep it in proportion to the rest of the book.

If your prologue needs to be long to work, ask whether it could be chapter one with a time label instead, or a series of short interludes placed through the book. Both can keep the same material without delaying the main story.

How should you format a prologue in your book?

Format a prologue like a chapter: a heading that reads “Prologue”, the same fonts and spacing as your other chapters, and a page break before chapter one. Put it after your front matter, such as the title page, copyright page and dedication, and before the first numbered chapter. Do not number it as chapter one unless you mean it to be.

In an ebook, give it its own entry in the linked table of contents so readers can find it, and make sure the file opens at the right place. In print, the prologue usually starts on a right-hand page, with page numbers beginning either at the prologue or at chapter one depending on your template. Our guide on how to format a book for KDP covers front matter order and page numbering in detail.

Epilogues are the mirror image, appearing after the last chapter. If you use both, keep their tone and treatment consistent. Some authors prefer headings such as “Before” or a dated place name instead of the word prologue. That is fine, as long as readers understand it is separate from the main timeline.

What are the most common prologue mistakes?

• Using it to dump backstory or world-building that the main story could reveal gradually.
• Writing it in a different style or tone from the rest of the book, which makes the real opening feel like a letdown.
• Giving the reader a character to care about, then never returning to them or the thread.
• Starting with a dream, a weather report or a long description of a map.
• Revealing the twist so the main plot loses its tension.
• Making it so slow or confusing that readers skip it, then feel lost in chapter one.

Read your prologue as a stranger would: ask whether you would turn the page. Then give it to a beta reader without warning and ask what they thought the book was about afterwards. If they skipped it, or did not connect it to the story, revise or cut it. Cutting a prologue is not a failure; many authors report that their best opening came from deleting theirs.

Frequently asked questions

Does every novel need a prologue?

No. Most novels work perfectly well without one. Add a prologue only if it gives the reader something chapter one cannot, such as a gripping question or essential context shown as a scene.

How long should a prologue be?

Usually shorter than a regular chapter, from a few hundred words to a couple of thousand. If it runs as long as a chapter, consider calling it chapter one.

Will readers skip my prologue?

Some will, so never put information in it that the story cannot survive without. Make it a gripping scene, and the readers who do read it will want to continue.

What is the difference between a prologue and a first chapter?

A prologue sits outside the main timeline or viewpoint and is usually brief. Chapter one starts the main story with your protagonist and their central problem.

Can a non-fiction book have a prologue?

Yes, though it is less common. Memoir and narrative non-fiction sometimes open with a short scene. Most other non-fiction uses an introduction instead.