# Slide: what the room sees

One slide as the room sees it: the headline and its evidence, whether it can be read from the back, and colour.

| Principle |
|---|
| [Claim headline with evidence](claim-headline-with-evidence.md) |
| [Legible in the room](legible-in-the-room.md) |
| [Colour as a signal](colour-as-a-signal.md) |