Presentation design: making slides legible from the back row

Presentation design is the craft of arranging what goes on a slide so the room can follow you. It is not decoration, and the skills that improve it are unglamorous: deciding what to leave out, making text large enough, and giving the eye one thing to land on. A deck built on those three survives a bad projector, a small screen and a distracted audience — which is the actual operating environment.

Almost every deck fails the same way. The slide is a document: eleven bullet points, a paragraph in ten-point type, three logos and a chart with a legend nobody can read. The presenter then narrates it, and the audience — who read it in four seconds — stops listening.

What good presentation design does

• One idea per slide. If a slide needs two, it is two slides; slides are free.
• Type large enough to read from the back — as a rule, nothing below twenty-four point, and headlines much larger.
• A headline that states the point rather than naming the topic. Revenue up 14% after pricing change beats Q3 Results.
• Contrast strong enough for a washed-out projector: dark on light or light on dark, never mid-grey on mid-blue.
• One chart per slide, with the message in the title and everything decorative stripped out.
• Consistent placement, so the eye is not relearning the layout every slide.
• Images that carry meaning. Generic stock photography of people shaking hands is visual noise with a licence fee.

The most reliable improvement is deleting words. Take any slide, remove half the text, and check whether the meaning survived. It almost always does, because the removed half was what you were going to say out loud — and a slide that repeats your words makes you redundant, while a slide that anchors them makes you clear.

Reading deck or speaking deck

These are different objects and trying to build one that does both produces something that does neither. A speaking deck supports a person in a room: sparse slides, large type, the detail in what you say. A reading deck is sent to someone who will never hear you: it needs the argument written out, and it is closer to a document.

When both are needed, build the speaking version and write the detail into the notes or a short accompanying document. Sending the sparse deck alone to someone who was not there is how a presentation becomes incomprehensible a week later.

Practical steps

1. Write the argument as sentences before opening any slide tool — the structure is a writing problem, not a layout one.
2. Give each slide one message, and make that message the headline.
3. Set a minimum type size and hold to it. Text that will not fit is a signal to split the slide, not to shrink the font.
4. Pick two colours plus a neutral, and use the accent only for what matters.
5. Strip charts to the message: no gridlines you do not need, no legend where labels fit directly.
6. Check on a screen you did not design on, and in a bright room if you can.
7. Cut the deck by a third before presenting it. Almost every deck improves.
8. Have a plan for the technology failing — knowing your three main points without slides is worth more than any template.

Templates and their limits

A consistent template saves real time and prevents the worst inconsistencies. It also cannot fix the underlying problem: template slides come with placeholder layouts that invite bullet lists, and a beautiful template full of eleven-point text is still unreadable from row six.

Free template galleries are heavily marketed and mostly interchangeable. Pick one, adapt it to your two colours and your minimum type size, and stop looking — the returns on a better template drop to nothing very quickly compared with the returns on saying less.

Building the deck

Ettex Slides covers the making: layouts, themes, speaker notes for the detail that should not be on screen, a present mode, and real-time collaboration so a colleague can cut your slides while you write them. Working from the same file rather than mailing versions is the difference between one deck and four.

It is not a design service and not a generator. There is no AI that redesigns a slide, no stock photo library, no icon set built in, and no brand-compliance checking that stops someone using the wrong colour. The judgement about what to remove — which is where presentation design actually happens — stays with the person making it.

One idea per slide, a headline that states the point, nothing under twenty-four point, and a third of the deck removed before you walk in.