AI video and design for clients: AI video

Sefism.

A to Z

Glossary

Every concept in this sheet, plus the smaller terms it uses. Select a concept to open its card.

A
Ad creative
The image or video an advertiser runs in a paid placement, usually made in several sizes and versions so the best one can be found by testing.
B
Brand consistency
Using the same colours, fonts, logo placement, tone and image style in every asset, checked against the brand kit.
Brand kit
A brand's logo files, colour codes, fonts, image style, tone of voice and examples of what to do and avoid.
C
Colour and contrast
Palettes built from harmonies (complementary, analogous, triadic), brand colours given as HEX codes, contrast that keeps text readable, and grading that makes clips match.
Creative testing
Running several versions of an ad, each changing one thing such as the hook or image, and keeping the winner by numbers like click-through rate and conversions.
D
Demand signal
Evidence that clients pay for a service: dated reports such as Upwork In-Demand Skills 2026 (AI video generation and editing +329 percent, AI images +95 percent, 2025 against 2024 earnings), plus live job posts and ads.
E
Explainer video
A short video, often 30 to 90 seconds, that shows what a product or process is, how it works and why it matters, usually with a voiceover.
H
Hook
Whatever stops someone scrolling: the first one to three seconds of a video, or the single element that reads instantly in an image.
P
Pacing and cutting
How long each shot stays on screen and why you cut.
S
Short-form video
Vertical 9:16 video for Reels, TikTok and YouTube Shorts, where the first one to two seconds decide whether anyone keeps watching.
Shot types
Wide shots show where we are, medium shots show a person and action, close-ups show detail or emotion.
Sound and voice
Voiceover, music and small sound effects, mixed so the voice sits clearly above the music.
Story structure
A simple shape for the message: problem, product, proof, call to action for ads; what it is, how it works, why it matters for explainers.
T
Thumbnail
The small image that represents a video and decides whether people click.
Typography
How text looks: typeface, size, weight, leading (line spacing) and kerning (letter spacing).
U
UGC-style ad
An ad made to look like a real customer filming on their phone: talking to camera, casual framing, quick cuts.
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