How do I design a mupi poster people read while walking past?

Mupis are backlit street-furniture posters positioned at eye level in high-traffic spots and read in a couple of seconds by people walking or driving past, so design for glance-speed reading. Strip everything down to one idea, match it to where the poster will live, and make it hold up under backlighting.

• Build around a single focal image, a headline of seven words or fewer, and one clear call to action.
• Use high-contrast colors that stay legible when lit from behind.
• Scout the placement first: indoor mupis in shopping areas can carry more detail, while outdoor bus-shelter units need bolder, simpler layouts read at speed, and commuter, retail, and event locations each reward a different tone.
• Human faces draw the eye and build a quick emotional connection.
• Keep the logo and message readable from across the street, not just up close.
• Add a QR code or unique URL so you can track response by location.
• Order a printed proof before committing to a full campaign run, and step back from it to confirm the message reads from where people will stand.