Five Poster Habits That Weaken a Design
Five ordinary poster habits that muddy a message, from too many fonts and starved margins to a leader no one can find.
A poster has one job: to be understood at a glance, and then a little more if someone stops. Most weak posters fail in the same handful of ways. They are not short of effort. They are short of subtraction. These habits are ordinary, which is why they are worth naming before you print.
Too many typefaces, and too many weights
Two typefaces are plenty. One is often better. A poster with a display face, a second display face, a script and a condensed caption looks like a folder of unused fonts. The reader spends the glance sorting voices instead of reading the message. Pairing Typefaces Simply is the restraint to borrow. If you use one family, let weight and size do the work, and stop before every line is in a different style.
All-caps for a long line is a cousin of this habit. A short title in capitals can shout cleanly. A sentence in capitals is a fence the eye climbs.
No single leader
If the title, the date, the picture and the logo are the same visual size, the poster has no first sentence. Choose one leader and make it unmistakably larger. Scale: Letting One Element Clearly Lead is the whole argument. A poster is where ignoring it shows up across a corridor.
The logo is the usual rival. It does not need to lead unless the poster is for the mark itself. Park it small, in a corner that the grid already offers, and let the message occupy the room.
Starved margins
Type run to the trim feels urgent and reads as a mistake. A margin is not wasted space on a poster. It is the frame that tells you the design is intentional. Margins and White Space on a Small Page applies even more when the sheet is large, because the edge is the first thing a passing person sees.
A border made of every colour in the palette is not a margin. It is more content. Leave the edge quiet unless a bleed is a deliberate field of one colour or one image.
Contrast you cannot see from the door
Pale grey type on a photograph, a yellow word on a white ground, a red headline on a brown face: these can look sophisticated on a bright screen and disappear on a wall. Check contrast in grey, and check it from a few metres. If the leader vanishes, enlarge it or change the value before you change the concept.
Photographs used as full backgrounds need a quiet place for type, a flat area or a simple translucent panel. Scattering the title across a detailed face helps neither the face nor the title.
Information that arrived too late
The last habit is the extra line added after the design was finished: a second slogan, a row of sponsor marks, a quote. Each addition is small. Together they return the poster to a notice. Keep a version from before the extras. If the new line does not earn its place against that version, leave it off or move it to a caption somewhere else.
A poster can be warm, handmade and full of character without committing these five faults. Character lives in the drawing and the colour. It does not require a new font for every fact.
Frequently asked questions
Are centred posters always weak? No. A centred stack with one large line and generous space can be very strong. Centring becomes a fault when several equal lines are stacked and nothing leads.
How many colours should a poster use? As few as the message allows. Two plus a paper colour will do more than six competing accents. Add a colour only when it distinguishes something the size cannot.
Can a poster be text only? Yes. Type, scale and margin are enough. A weak illustration will not rescue unclear words. Clear words sometimes make the illustration unnecessary.