Why campaign posters relied on simple imagery
Launch library · evergreen read

A poster has only a moment to catch someone's attention, often while they are walking past rather than deliberately choosing to engage, which has always pushed campaign posters toward simple, bold imagery and very few words rather than a detailed argument. That brief window shaped the whole visual tradition surrounding this particular form of campaigning.
This constraint shaped a whole visual tradition within campaigning, favouring strong contrast, a single clear image and minimal text, since a design that required careful reading rarely succeeded in a format designed to be absorbed in a few seconds. Restraint, in this format, became a genuine skill in itself.
Even as digital formats have added new possibilities, the underlying discipline that poster design demanded, saying something clearly and immediately, remains a useful principle for campaign communication of almost any kind, in any medium. That old discipline still transfers remarkably well to a scrolling feed today.