Building a hook library your team will actually reuse

A hook is the first few seconds of a video ad. A library of hooks that were measured stops each new brief from starting with a blank page.

What goes on a hook card

  • The hook word for word: the first spoken line, the first on-screen text and the first frame.
  • The angle it uses: a question, a result, a mistake, a comparison or a demonstration.
  • The audience and the problem it speaks to, in one sentence, and the creative ID of every video that used it.
  • The measured hook rate and the impressions behind it. If it was not measured, write not measured.

Tag it and add only what has run

  • Use one fixed list of angles, so the library can be filtered by what kind of opening works.
  • Add a hook only after a video with it has run long enough to have a number.
  • Hooks from competitors or creators are ideas. Rewrite them in the client's words first.
Made-up scenario: the library holds 40 hooks. Eight open with a question, and three of those eight beat the rest of the library for the same product. Those three become the first briefs of the next month.

Reuse the structure, not the exact words

  • The same opening shown to the same people for months wears out. Reuse the structure with a new product detail.
  • When a hook's rate falls over several weeks, retire it or change one element, and log the change.

Keep it current

  • Once a month, remove hooks that were never measured and mark hooks that only worked for one client.
The hook rate glossary entry defines the number. The creative test review is where a new hook gets judged.

6 min read. Last updated 2026-10-07. Examples use made-up numbers.

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