# Playbook: AIDA — Attention · Interest · Desire · Action

> Elias St. Elmo Lewis's ladder — the default skeleton for short-form ads and cold surfaces.

## Origin

**Elias St. Elmo Lewis**, c. 1898 — the oldest named formula in the discipline, predating even Kennedy's "salesmanship in print" definition (1904). It survives because it's the minimum viable structure: every later school (PAS, RMBC, Great Leads) is a more specific instrument built on top of the same four movements. AIDA is the generalist's tool; the others are specialists'.

## When to use it

- **Cold traffic, short surfaces**: paid social ads, banner ads, cold email subject-plus-first-line, any surface measured in seconds not minutes.
- Per §5.2's decision table: "Channel = cold ad → 3-12 words to earn the click → AIDA skeleton; hook-first."
- Useful as a **structural checklist** even inside a longer piece — if a page's opening 100 words don't clear Attention and Interest, nothing downstream matters (Masterson/Forde's "lede determines ~80% of the result," §3.2.2).

## When NOT to use it

- **Long-form VSLs and sales letters** where the Slippery Slide (§6.3) or Big-Idea VSL (§6.7) give a subtler, momentum-based architecture — AIDA's four blunt movements will feel mechanical stretched over 20 minutes.
- **Solution-Aware or Product-Aware audiences** who don't need "Attention" earned from zero — they're already looking. Lead with Promise or Offer instead (Great Leads, §6.5).
- **When ELM says central route** (§5.3) — a motivated, high-elaboration reader (high-ticket, considered purchase) wants argument and proof, not a punchy four-beat ladder built for peripheral-route skimmers.

## Step-by-step build

1. **Attention** — the hook. Per Caples' appeal ranking (§4, mechanics/testing school): self-interest beats news beats curiosity beats "quick-easy-way." Earn it in the first line; no throat-clearing.
2. **Interest** — one sentence that gives the reader a reason this applies specifically to them (their situation, their number, their identity) — this is where "enter the conversation already in their head" (Collier, §2.2 axis) does its work.
3. **Desire** — make the benefit vivid and specific (Ogilvy's electric-clock specificity, §4) — not "save money," but the exact number, the exact scene.
4. **Action** — one CTA, verb-first, friction-minimized (Fogg's B=MAP model, §2.10 — reduce required ability, give a clear prompt).

Each movement is one sentence to one short line in a cold-ad context — the whole unit should be readable in the time a scroll-thumb takes to pass it.

## Worked mini-example

**Attention:** "You've built three businesses. None of them are worth anything without you in the room."

**Interest:** "That's not a compliment — it's the reason a buyer won't sign."

**Desire:** "The Builder Passport turns your track record into a transferable asset a buyer can underwrite in a week, not a year."

**Action:** "Start the 12-minute audit."

## How the verify gate applies

Falls under §8.3 (`ad-set`) when built for paid social: **≥5 variants**, each declaring an awareness-stage target, a hook line **≤12 words**, single CTA, and an angle tag used at most twice across the set. AIDA's four-beat shape maps directly onto the rubric's required fields — Attention supplies the hook line, Interest+Desire supply the primary text, Action supplies the single CTA. Duplicate hook lines across variants are an automatic fail — each Attention line must be genuinely different, not a synonym swap. If used as the opening of a longer sales page instead, the standard §8.1 sales-page rubric applies to everything downstream of Action.