How to create your own writing style guide as a fiction author
Readers notice inconsistency even when they can't name it. A character's name spelled two ways, or a magic system term capitalised in chapter three, and lowercase in chapter twelve. One way to track and fix any inconsistencies is through a dedicated manuscript style sheet.
A style guide and a style sheet aren't the same thing
AP, Chicago, New Hart's Rules — those are external rulebooks, built for entire industries, covering thousands of situations you'll never encounter in your own manuscript. A style sheet is smaller and entirely yours: a running record of the specific spelling, formatting and continuity decisions you've made for this book, so you make them the same way every time instead of relying on memory across 100,000 words and eighteen months of drafting.
Building a style sheet will help you later on when it comes time to edit your draft.
What to track in your manuscripts style sheet
Character names and variants
Full names, nicknames, titles, honorifics, and how they shift as relationships change — does she call him "Kael" in chapter one and "my lord" by chapter twenty, and is that intentional?Place names and invented terminology
Spelling, capitalisation and hyphenation for anything you made up — magic systems, factions, technology, currencies. Is it "the Fae Court" or "the fae court"? Pick one and write it down the first time it appears.Language used for each character
Does one character speak a different language? How do they speak? For example, are their words stilted, or do they skip over words?Numbers
Spelled out or numerals, and whether that changes between narration and dialogue.Hyphenation and compounds
Invented-world compounds especially — "moonlit," "starfall," "half-blood" — need one form, not three.Formatting conventions
Italics for internal thought, telepathic speech, foreign words, ship or book titles within the text — and whether that's consistent whenever it recurs.Base spelling and punctuation choices
American or British spelling, Oxford comma or not, spaced en dash or unspaced em dash. This is the one authors skip most often, and it's the one that makes a manuscript look unedited fastest — a decision made once and applied throughout beats a "closest available" choice made sentence by sentence.Continuity notes
Not strictly style, but it lives in the same document for most authors: ages, dates, travel times, eye colours — anything a sharp-eyed reader could catch you contradicting three chapters later.
Build your style sheet as you write
The only sustainable way to keep a style sheet is to open it the day you start drafting and add a line the moment you make a decision worth remembering — not to sit down after 80,000 words and try to reconstruct every choice you've already made. Retroactive style sheets are painful and always incomplete. A running one costs seconds per entry and pays for itself the first time you can't remember, three drafts later, whether you spelled a name with one L or two.
A simple spreadsheet or a running document works fine. Alphabetise it loosely as it grows, so you can actually find things by the time it's fifty entries long.
Why this matters even more if you're self-publishing
Traditionally published books get a copyeditor who builds this for you as a matter of course. Self-published authors, especially across a series, are their own consistency check — and inconsistency is exactly the kind of thing that reads as amateur even to readers who couldn't tell you why something felt off. If you're writing in a second language or for markets where spelling conventions differ, the risk compounds: a manuscript that drifts between American and British spelling doesn't read as bilingual, it reads as unedited.
Preparing an extensive style sheet is a gift for your future editor
When you do hire a line editor or copyeditor, your style sheet is one of the first things they'll ask for. Handing over a real one, even an imperfect one, tells them you've already made your decisions deliberately — which means less time spent guessing at your intent and more time spent on the writing itself. If you show up without one, they'll build it for you during the edit, which is fine, but it's billable time spent documenting choices you could have logged for free as you made them.
Writing tips
Start with six categories and build from there:
Character name spellings and variants
Invented-world terms and their capitalisation
Your base spelling standard (US or UK)
Hyphenation for your most-used compound words
Italics rules for thought, foreign words and titles
Dialogue tags and which format you use
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