The slide deck was designed as a support tool. At some point it became the argument. That shift has made professional communication significantly worse. Here is how to reverse it.

There is a presentation format that has become so normalised in professional life that most people no longer notice how badly it communicates. A deck of twenty to fifty slides. Each slide containing two to five bullet points. A presenter reading those bullet points to an audience that can read them simultaneously and faster. An hour spent transferring information that could have been an email. This is not a presentation. It is a document with a live narrator, and it is significantly less effective than either a well written document or a well structured presentation would be on its own.

What Went Wrong

The slide deck was originally a visualisation tool designed to show things that words could not carry efficiently. At some point it became the communication itself. Research on presentation effectiveness consistently finds that audiences retain significantly more from presentations built around a clear narrative structure than from presentations built around information transfer via slides. The narrative structure creates a throughline that the audience can follow and remember. The information structure creates a sequence of facts that the audience can follow in the room and forget within forty eight hours.

The Argument First Framework

The framework I use builds the presentation in the opposite order from the one most professionals use. Start with the one sentence conclusion: what do you want the audience to believe, decide, or do differently after your presentation? This is not the topic. It is the argument. “Our Q3 campaign strategy should shift from awareness to conversion” is an argument. “Q3 Campaign Strategy Update” is a topic. Then build the three to five points that lead to that conclusion, each one a claim that needs to be made and supported. Then and only then, identify where visual support would genuinely help. Build the slides in service of those specific moments. Delete everything else.

The Length Problem

Research from presentation design experts including Nancy Duarte suggests that most professional presentations are roughly three times longer than they need to be to make their argument effectively. The rule I apply in my courses: if you cannot make your core argument in five slides or less, you have not finished developing the argument. You have finished collecting the material. Those are different stages of the work, and conflating them is what produces forty slide decks that leave audiences informed but unpersuaded. A presentation with a clear argument, well supported, concisely delivered, is one of the most powerful communication tools in professional life. Most presentations are not that.

One Deck, Rebuilt: A Worked Example From Yeouido

Here is what the argument first approach looks like on a real kind of deck. Picture Seoyeon, a marketing team lead at a mid sized fintech app in Yeouido. Every quarter she presents results to the 상무, the executive who signs off her budget. Her last review was 32 slides titled Q3 Marketing Performance Review: channel by channel numbers, a page of campaign screenshots, a competitor round up and a thank you slide. The 상무 flipped ahead in the printout, asked two questions about slide 19, and the meeting ended without a decision on the one thing she needed, which was next quarter’s budget.

The second version is not shorter because Seoyeon cut corners. It is shorter because she finally decided what she was asking for. Once the one sentence conclusion was written (move part of the search budget into referral rewards), the other 27 slides sorted themselves into three piles: evidence for the claim, evidence against it that she needed to answer, and material that was simply interesting to her. The third pile went into an appendix she emailed afterwards. Nobody asked for it.

This is the same move I describe in writing headlines: the title does the work because most people read only the title. On a slide that is literally true. Your audience reads the title in the first two seconds and then either listens to you or reads the bullets. They cannot do both, so the title had better carry the point.

Rehearse From the Headlines, Not the Slides

Most people rehearse a deck by clicking through it and talking over each slide. That practises the slides, not the argument, and it is why so many presenters freeze when the projector fails or a senior person says, let us skip to the end. The better rehearsal starts with the slide titles alone, and it uses the slides last, the same way you built them.

Step four matters more in Korea than anywhere else I have worked. A 상무 or 부장 who has read the printout before you start will often jump straight to the slide they care about, and a presenter who has only rehearsed in sequence loses the thread. If you have rehearsed the argument, you can pick it up from any slide. Record the laptop shut run once on your phone and work through it with Mic Check. You will hear where you speed up, which is usually where the argument is thin. If the nerves come from not knowing your opening, that is a preparation gap, not a personality flaw, and if the order of the talk is the problem, the seven part blueprint gives you a structure to hang the titles on.

The Korean Reporting Room Already Knows This

Korean companies have their own version of the deck problem, and some are fixing it from the reporting side. In April 2021 Hyundai Department Store said it had replaced paper reports with a mobile system in which employees write a short report of five to six sentences on the intranet and send it to senior colleagues, so that staff spend less time on report formatting and more on their actual work (Korea JoongAng Daily, April 19, 2021). Five or six sentences is roughly the length of a good argument: a conclusion and the three to five claims behind it.

Amazon reached the same place from the other direction. Its 2017 letter to shareholders says plainly that the company does not use PowerPoint or any other slide based presentations, and that teams write narratively structured memos of six pages instead (Amazon, 2017 Letter to Shareholders). You do not have to ban slides to use the lesson. In a Korean meeting room, the most useful thing you can do is send the five sentence version the day before, as the cover page of the printout or a short message to the 부장. The people who decide read it first anyway. Write it the way you would write an email with one job, and the deck goes back to being the support it was designed to be. If those five sentences settle the matter on their own, that is worth knowing too, and the meeting that should have been an email explains what to do next.

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CareerCommsTwenty five years in business communication, marketing and branding, twenty four of them in Seoul. Written by a university lecturer and consultant; the frameworks here are the ones we teach with. About · For companies