Why Wartime Posters Still Stop Us in Our Tracks

Between 1939 and 1945, British poster design was a matter of national urgency. Millions of sheets rolled off the presses, destined for factory walls, railway platforms, post office windows and village noticeboards. Each one had to do its job in the two or three seconds it took a passer-by to walk on by. There was no second glance, no click, no chance to explain. That brutal constraint is exactly why these posters remain such a rich lesson in persuasion. When you cannot afford to be ignored, every choice — colour, lettering, the angle of a figure's gaze — has to earn its place.

Colour Did the Heavy Lifting

Wartime palettes were narrow and deliberate. Printers were short of ink and paper, so designers worked with two or three flat colours rather than gradients and fuss. The upside was enormous clarity. A limited palette also builds instant associations, because repetition across hundreds of posters teaches the public what each colour means.

• Red on cream — alarm without hysteria; the colour of the postbox and the fire engine, already coded as urgent.
• Black on white — sober, official, hard to argue with. Ideal for instructions and regulations.
• Navy and mustard — steady, wholesome, faintly nostalgic. Common on posters about growing food and saving fuel.
• High contrast throughout — legibility under a dim bulb, on a foggy station platform, at thirty yards.

The lesson is simple: pick colours that already carry meaning for your audience, then use them consistently until they carry it for you.

One Idea, One Sentence

The best-remembered slogans are almost impossibly short. "Dig for Victory." "Careless Talk Costs Lives." "Make Do and Mend." "Keep Calm and Carry On." Each is a complete instruction in three to five words, and each uses a technique you can borrow tomorrow.

• Imperative verbs — Dig, Keep, Make, Save. The poster tells you what to do, not what to think about.
• Alliteration and rhythm — "Careless Talk Costs Lives" lands like a drumbeat, which is why it stuck.
• Contrast and consequence — an action paired with a cost, so the sentence contains its own argument.

A practical test: read your headline aloud in one breath. If you run out of air, it is still two ideas pretending to be one.

The Emotional Levers: Duty, Fear, Shame and Cheer

Persuasion rarely works through logic alone. Wartime designers understood that a poster must first make you feel something, and only then tell you what to do about it.

Fear was used sparingly and often with wit, because frightened people freeze rather than act. The famous "Careless Talk Costs Lives" series placed gossiping figures in harmless domestic settings, letting the caption deliver the sting — the humour made the warning bearable and therefore memorable.

Duty and belonging appealed to something older than self-interest. Kitchener's pointing finger worked because it addressed one person directly, framed as a personal request rather than a general notice. The second person — "you" — is one of the most powerful words available to any writer.

Cheerfulness carried the longest campaigns. Posters urging the public to grow vegetables, mend clothes and share baths succeeded because they promised competence and pride rather than guilt. Nostalgia did similar work: hedgerows, harvests and village greens reminded people what they were protecting, not merely what they were losing.

Layout and Lettering That Read at a Glance

Strip away the period charm and you find a strict visual hierarchy. One focal point, usually a single figure or object. A bold headline occupying the upper third. A short line of supporting text beneath. Generous blank space around the edges so the design does not compete with the wall it sits on. Arrows, pointing hands and direct eye contact all steer the viewer's attention deliberately, like a signpost rather than a decoration.

Typefaces were chosen for distance, not elegance. Hand-lettered headlines had warmth and personality; heavy sans-serif capitals had the weight of officialdom. Very little was set in lowercase, and almost nothing was centred without reason. If you squint at a good wartime poster from across a room, you should still be able to identify the action it wants from you.

Borrowing the Craft Without the Propaganda

These techniques are morally neutral tools, and it is worth being honest about that. They worked in wartime because they spoke to genuine shared stakes — survival, food, safety, neighbours. The same tricks used to sell something trivial tend to feel hollow, and audiences are quick to notice.

So take the craft and leave the manipulation. Decide the single action you want from your reader. Choose two colours that mean something and repeat them. Write your headline before you sketch anything, because the sentence is the design. Test it from the far side of the room, and cut anything that does not survive the walk back. Done well, that discipline is not old-fashioned. It is simply good communication — the kind that respects the reader's time and trusts a clear idea to do the work.