In short: A video editing style guide is a written record of the decisions that make your videos recognisably yours, so that any editor or AI system can match them. Build it from five to ten videos you are proud of rather than inventing a new look, and capture every repeated choice: caption font, size, colour and position; pacing and clip length; how videos open; framing and punch-ins; colour treatment; music and sound effects; lower thirds, logos and end cards; and how each format differs between 9:16, 1:1 and 4:5. Link every rule to a timestamp or screenshot that shows it in action. Pair the guide with one reference video for each new piece, so the editor knows which rhythm to follow. Then keep the guide alive by adding any revision note that repeats, so the same correction never has to be made twice and the style gets sharper every week.
Most teams have a style. Very few have it written down. It lives in one editor's head, which is fine until that editor is busy, on holiday or gone, and the next video quietly looks different.
A written style guide fixes that. It is the single most useful thing you can make before scaling short-form, whether you hire, outsource or use AI.
Start from what already worked
Pick five to ten videos you are proud of, ideally your best performers. Your style is whatever they have in common. You are not inventing a look; you are describing the one you already have.
The decisions to capture
- Captions: font, size, colour, position, how many words per line, word-by-word or phrase-by-phrase, emphasis style.
- Pacing: how tight the cuts are, whether pauses are removed, typical clip length.
- Hooks: how videos usually open, and what never goes in the first three seconds.
- Framing: how close the speaker is, when you punch in, what happens with two speakers.
- Colour and look: any grade, contrast or filter you apply.
- Sound: music level under speech, sound effects or none, how videos end.
- Graphics: lower thirds, logos, progress bars, end cards.
- Formats: 9:16, 1:1 and 4:5, and what changes between them.
Show, do not just tell
For each rule, link a timestamp in one of your reference videos that demonstrates it. "Captions in the lower third, two lines max" is good. A screenshot next to it is better.
Pair the guide with a reference per video
A style guide covers what every video shares. For each new video, add one reference: an existing video whose rhythm the new one should follow. Style plus reference removes most of the guesswork, for a person or for an AI system.
Keep it alive
Whenever a revision note repeats ("captions too big", "cut the intro"), it belongs in the guide. A guide that absorbs every repeated correction gets better every week.
Or have it built for you
This is the first thing ReelNinja does with every client: we build a Style System from the videos you have already published, then apply it to every video after. Your first brand's Style System is free. Start with three free clips.