What is the difference between a story bible and an outline?

An outline records what is going to happen; a story bible records what is already true. The outline changes every time you replan, while the bible only grows as the draft commits to facts. When the two disagree, the manuscript wins and the bible gets corrected, because the bible describes the book as written.

Should I write the story bible before I start drafting?

Only the premise sheet and the few rules the plot depends on. Everything else is faster and more accurate when you record it as it appears on the page. A bible written in advance fills up with decisions the draft later overturns, and you end up maintaining two versions of the story.

How long should a story bible be?

As long as the facts your book has committed to, and no longer. A contemporary standalone might fit on a few pages. An epic fantasy series can run much longer, because every place, rule, and past event is something a later chapter can contradict. Length follows the risk of forgetting, not effort.

Do I need a separate story bible for each book in a series?

Keep one shared bible for the series and add a short section per book. Cast, places, and world rules carry across books, so splitting them means updating the same fact twice. What changes per book is the timeline, the open threads, and where each character stands when that book ends.

Story Bible Template for Novels

A story bible template is a fixed set of sections for recording what your novel has already made true: who the characters are, where things are, which rules the world runs on, and which threads are still open. It exists so that in chapter twenty you look a fact up instead of guessing it. The version that works has seven sections, gets filled in from the draft, and records decisions, not wishes.

Below are the sections, a skeleton you can copy, and the habit that decides whether a bible stays useful past the first act.

What a story bible is (and what it isn't)

The name comes from television and film, where a "bible" is the reference document writers use for characters, settings, and continuity so that many people can work on one show without contradicting it. A novelist's story bible does the same job for a team of one who forgets.

It is not an outline. An outline says what is going to happen; a bible says what is already on the page. The outline changes every time you replan. The bible only grows, and when it disagrees with the manuscript, the manuscript wins — the bible is out of date. If you need the forward-looking document, see how to outline a novel; the bible is its opposite half.

The story bible template

Seven sections. Fill the first one before you draft; fill the rest as the draft commits to things.

Section	What goes in	When to fill it
Premise sheet	Logline, genre, point of view and tense, the promise the book makes the reader	Before drafting
Cast	One entry per named character: name and every alias, role, first appearance, fixed physical facts, relationships	When a character first appears on the page
Places	Name, what it looks and sounds like, where it sits relative to other places, first appearance	When a scene first uses it
World rules	How magic, technology, law, money, or institutions work, including limits and costs	When the plot first depends on a rule
Timeline	Backstory events with dates, in-story day or season per chapter, characters' ages	End of every writing session
Threads	Open plot threads, setups waiting for payoff, secrets and who knows them	End of every writing session
Style sheet	Spellings of invented words, capitalization, hyphenation, how you write numbers and titles	Whenever you make a choice twice

The style sheet is the section most templates leave out. Copyeditors typically build one as they work through a manuscript, because "Dragon's Reach" in chapter 3 and "Dragonsreach" in chapter 18 are both errors the reader sees. Starting it yourself saves that argument later.

The threads section is the one that pays off most in revision. A setup you planted and forgot is a broken promise — the Chekhov's gun problem — and a list of open threads is how you find it before a reader does.

A copy-ready skeleton

Paste this into whatever you write in and delete what your book doesn't need.

PREMISE
Logline:
Genre:
POV / tense:
Reader promise:

CAST (one block per named character)
Name:            Aliases:
Role:            First appears: ch.
Fixed facts:     (age, eyes, scars, habits the text has stated — with chapter)
Relationships:
Where they stand now:

PLACES (one block per place)
Name:            First appears: ch.
Looks / sounds like:
Distance / direction from:

WORLD RULES
Rule:            Limit / cost:          First established: ch.

TIMELINE
Before page one:
Ch. 1 — day / season:
Ch. 2 — day / season:

THREADS
Thread / setup:  Planted: ch.    Paid off: ch.
Secret:          Who knows:      Since: ch.

STYLE SHEET
Invented words and names:
Capitalization / hyphenation:
Numbers, dates, titles:

Two details in it matter more than they look. Every fact carries a chapter number, so a disagreement can be checked against the page instead of against memory. And every character has a "where they stand now" line, which is the field you'll read most often in a long book.

How to fill it without stopping the draft

The trap is treating the bible as a project. Writers who fill in every field before chapter one spend a month on a document the draft will contradict, then stop opening it. The approach that survives is smaller:

Before drafting, write the premise sheet and only the world rules the plot cannot work without. A logline is enough of a premise to start.
While drafting, don't stop to update. Keep writing and leave yourself a mark in the text where you invented something.
At the end of each session, spend ten minutes moving new facts into the bible, with chapter numbers. Update the timeline and the thread list.
At the end of each act, read the threads section and ask which setups still have no payoff planned.

Record, don't invent. If a detail isn't on the page yet, it belongs in your notes or the outline. A bible that holds only what the text states is one you can trust without rereading the book.

How much bible does your book need?

The size tracks how many facts a later chapter can contradict, which depends heavily on genre.

Book	Sections that carry the weight	What you can keep thin
Contemporary standalone	Cast, timeline	World rules, places
Mystery	Threads (clues, who knows what, and when), timeline	World rules
Fantasy or science fiction	World rules, places, style sheet	—
Series	Everything, plus where each character stands when each book ends	—

Mystery is the genre where the timeline and the secrets list stop being optional: a fair-play solution depends on the reader having seen the clue, and the only reliable way to know is to record where you placed it. More in how to write a mystery novel.

For a series, keep one shared bible and add a short section per book. Cast, places, and rules carry across volumes; splitting them into separate files means updating the same fact twice and eventually getting one of them wrong.

Mistakes that make a story bible useless

Worldbuilding instead of writing. Designing currencies and dynasties the plot never touches feels like progress and produces no pages. Worldbuilding earns its place when a scene needs it.
Recording plans as facts. "She dies in act three" is outline. Put it in the bible and you'll trust it after you've changed your mind.
No chapter references. "Eyes: grey" with no source means rereading the book to check which is right when the draft says blue.
Keeping it where you don't look. A bible in a separate folder is opened for the first week and then consulted from memory, which is the thing it was meant to replace. Keep it beside the manuscript.
Duplicating the character profiles. The bible's cast entry holds facts the text has stated. The deeper work — want, need, contradiction — belongs in a character profile, and the bible links to it rather than copying it.

How Writer Studio helps

Writer Studio keeps the story bible inside the project as the Book Wiki, open next to the manuscript. It ships with three kinds of card — characters, locations, and plotlines — each with a name, aliases, a one-line summary, and a full description. Plotlines carry a status (introduced, developed, paused, resolved) and an ordered list of the scenes that make up the thread, so you can follow one thread from scene to scene. See plotlines.

The aliases do continuity work: the editor highlights names it knows in your text, and each character or location has an Appears in list in its properties — the scenes it's confirmed in — so "where did I last mention her?" is one click. For the world-rules section, Entry Types let you define your own cards — a faction, a magic system, an artifact — with text, choice, and list fields. Types are shared by every book in a project, so a series keeps one vocabulary.

Download Writer Studio and start the bible beside your first chapter — free, local-first, for macOS, Windows, and Linux.

Writer Studio is in alpha; features and interface are still changing.

Where to start

Write the premise sheet today and nothing else. Then draft, and give the bible ten minutes at the end of each session. By the end of act one you'll have a reference that only contains true things, which is the whole point. For the wider question of how the bible fits with scenes, drafts, and notes, see how to organize a novel.