Advertising terms, explained simply.

A practical glossary for media buying and creative research.

Creative
The visual, audio, or text material used in an ad.
Hook
The opening idea intended to attract attention.
CTA
The action an ad asks someone to take.
CTR
Clicks divided by impressions.
CPA
Spend divided by recorded acquisitions.
ROAS
Attributed advertising revenue divided by ad spend.
Swipe file
A collection of creative references.
Observation span
Time between the first and last available observations.