# 12 · Carousel

**PRINCIPLE** — A sequence, not a stack.

**RULE** — Roles: cover, hook, information, proof, service, comparison, photo, CTA. Continuous top rule with start and end ticks; slide number on the rule; 5–10 slides; ≤ 20 words per slide.

**WHEN TO USE** — Explanations, tours, comparisons, guides.

**WHEN NOT TO USE** — Single messages or more than 10 steps.

**DO**
- End with the only CTA
- Keep the rule at the same height

**DON’T**
- Changing templates mid-carousel
- CTA on every slide

**EXAMPLE** — See board Three carousels (10).