Every deck has the same handful of problems. Too much text. No clear focal point. A weak opening. A vague ending. These mistakes are so common that once you learn to spot them, you'll see them everywhere — in your own decks and everyone else's.
The good news: every one of these mistakes can be fixed with a single message. This article gives you the symptom, the fix, and the prompt to make it happen.
Mistake 1: Too Much Text
The Symptom
A slide that looks like a Word document. Paragraphs of text, dense bullet lists, small font to fit everything in. The viewer's eyes glaze over before they start reading.
Why It Happens
You're trying to include everything you know. You're afraid of leaving something out. You think "more information = more persuasive." It's the opposite.
The Fix
"Turn this text into 3 bullet points with icons for each one. No more than one sentence per point."
"This slide has too much text. Simplify it to one headline and 3 key points. Each point should be 5 words or fewer."
"Replace this paragraph with a visual. What's the one number or image that says the same thing? Show that instead."
"Strip this slide back to just the headline and one supporting visual. If someone can't understand it in 5 seconds, there's too much on it."
Mistake 2: No Visual Hierarchy
The Symptom
Everything on the slide is the same size, the same weight, the same colour. Nothing stands out. The viewer's eye wanders around looking for what matters and doesn't find it.
Why It Happens
You treated every element as equally important. Or the default styling made everything look the same. When nothing is emphasised, nothing is memorable.
The Fix
"Make the key number 3x larger than everything else on this slide. It should be the first thing the eye sees."
"This slide has no focal point. Pick one element — the most important metric, the headline, or the CTA — and make it dominate the slide. Everything else should be smaller and lighter."
"Create a clear reading order: hero element at the top (largest), supporting detail in the middle (medium), secondary information at the bottom (smallest)."
"The revenue number should be massive. The label should be small. The trend arrow should be medium. Right now everything is the same size — there's no hierarchy."
Mistake 3: Inconsistent Styling
The Symptom
One slide has rounded cards, another has square ones. Fonts change between slides. Some slides have a dark background, some light, with no pattern. The deck feels like it was made by three different people.
Why It Happens
You built slides one at a time without thinking about the whole deck. Or you copied elements from different sources. Or you gave the AI different style directions for different slides without a deck-wide brief.
The Fix
"Match the style of slide 3 across all slides — same card style, same font treatment, same spacing."
"Make the whole deck consistent: same background colour on every slide, same card borders, same font sizes for headlines. Right now each slide looks like a different deck."
"Apply a consistent visual system across all slides — same colours, same layout grid, same spacing between elements. Use our brand colours everywhere."
"This deck has no visual consistency. Set a deck-wide style: dark backgrounds, light text, brand accent for highlights, consistent card treatments. Then rebuild each slide to match."
Mistake 4: Weak Opening
The Symptom
The first slide is a company logo, a tagline, and maybe a date. It's a title page, not a hook. The viewer has no reason to pay attention. The most interesting slide is buried on slide 4.
Why It Happens
Convention. Every template starts with a title slide. Every presentation starts with "Hi, I'm [name] from [company]." It's safe, but it's wasted attention.
The Fix
"Start with a surprising statistic, not our company name. The first slide should make the viewer lean in. Our logo can go on slide 2."
"Redesign the opening slide — lead with the problem, not our brand. 'Sales teams waste 4 hours building every deck' is a better opener than 'Company Name — Sales Platform.'"
"Make the first slide a hook. One provocative question or one striking number. Dark background, large text, nothing else. The viewer should think 'I want to hear more.'"
"The opening should feel like a headline, not a title page. Bold, confident, one idea. Save the company introduction for the second or third slide."
Mistake 5: No Clear CTA
The Symptom
The last slide says "Thank you!" or "Questions?" or shows the company logo and contact details. The viewer finishes the deck and has no idea what to do next. The deck informed them but didn't move them.
Why It Happens
You ran out of steam at the end. You added a "thank you" slide because every deck has one. You forgot that the whole point of the deck is to get someone to take an action.
The Fix
"End with exactly one thing you want them to do. Not 'thank you.' Not 'questions.' One clear CTA: 'Book a demo,' 'Start your free trial,' or 'Let's schedule a call.'"
"Replace the 'Thank You' slide with a bold CTA. One button, centred, brand-coloured. 'Start free' or 'Book a call.' Nothing else on the slide. This is the most important slide in the deck."
"The closing slide should feel like a call to action, not a sign-off. Bold headline that tells them what to do. A single button or link. Remove the logo, social links, and contact details — they distract from the action."
"Make the CTA slide feel decisive. The headline does a word-by-word reveal. The button grows from the centre after a pause. Dark background, one action, maximum impact."
Mistake 6: Starting With Your Company, Not Their Problem
The Symptom
The first few slides are all about you — your history, your team, your mission, your values. The viewer is waiting for the part that's relevant to them. By the time you get to it, they've mentally checked out.
Why It Happens
You're proud of your company (rightly so). You think the viewer needs context before they can understand your solution. In reality, they need to feel the problem before they care about who you are.
The Fix
"Restructure: lead with their problem, not our story. The viewer should feel 'this is about me' on slide 1. Our company story comes after they care about the solution."
"Move the company background to slide 5 or 6. The first 3 slides should be: the problem, why it matters, and what changes. We earn the right to talk about ourselves by showing we understand their world first."
"This deck starts with 3 slides about us. Flip it — start with 3 slides about them. Their pain, their cost, their missed opportunity. Then introduce us as the answer."
Mistake 7: Data Without Context
The Symptom
Numbers on the slide without any frame of reference. "Revenue: £240k." Is that good? Is that bad? The viewer has to decide, and they'll usually decide it's unremarkable because they have nothing to compare it to.
Why It Happens
You assumed the viewer would understand the significance. You forgot that £240k means something very different to a pre-seed startup than to a Series B company. Without context, numbers float.
The Fix
"Add context to every metric. Not just '£240k MRR' — add 'up from £70k last year' or '+340% YoY' or 'top 5% at our stage.' The number needs a benchmark."
"Every metric on this slide needs a 'so what.' Add a comparison badge, a trend arrow, or a benchmark. The viewer should know instantly whether each number is impressive."
"Show our revenue next to the industry average. Our number in brand colour (large), the benchmark in grey (smaller). The gap should be visually obvious."
Mistake 8: Burying the Best Content
The Symptom
The most impressive slide — the traction data, the killer testimonial, the dramatic comparison — is on slide 8 of 12. Half the audience has mentally checked out by then. Your strongest content is performing to the smallest audience.
Why It Happens
You built the deck in chronological order — story first, proof last. You saved the best for the end, like a movie building to a climax. But decks aren't movies. Attention declines from slide 1.
The Fix
"Move our strongest metric to slide 2 or 3. Don't save it for the end — lead with impact, then explain. If someone only sees 3 slides, they should see our best content."
"Restructure: strongest proof first, story second. Lead with the traction number, then explain how we got there. The investor will pay attention to the story if the numbers earned their interest first."
"The testimonial from [big client] is buried on slide 9. Move it up to slide 4 — right after the problem and solution. Social proof early builds trust for everything that follows."
The Quick-Fix Reference
| Mistake | One-Line Fix Prompt |
|---|---|
| Too much text | "Simplify to 3 bullet points with icons, one sentence each" |
| No hierarchy | "Make the key number 3x larger than everything else" |
| Inconsistent styling | "Match the style of slide 3 across all slides" |
| Weak opening | "Start with a surprising statistic, not our company name" |
| No clear CTA | "End with one bold CTA — the only action on the slide" |
| Company-first narrative | "Lead with their problem on slide 1, our story on slide 4" |
| Data without context | "Add '+340% YoY' next to every raw number" |
| Buried best content | "Move our strongest metric to slide 2" |
What to Read Next
- Before & After: 10 Slide Transformations — See these mistakes fixed in side-by-side transformations.
- Typography and Visual Hierarchy — Deep dive into hierarchy, the fix for most slide problems.
- Iterative Refinement: The 3-Prompt Rule — The workflow for fixing any slide in three rounds.
Every deck has the same handful of problems. Too much text. No clear focal point. A weak opening. A vague ending. These mistakes are so common that once you learn to spot them, you'll see them everywhere — in your own decks and everyone else's.
The good news: every one of these mistakes can be fixed with a single message. This article gives you the symptom, the fix, and the prompt to make it happen.
Mistake 1: Too Much Text
The Symptom
A slide that looks like a Word document. Paragraphs of text, dense bullet lists, small font to fit everything in. The viewer's eyes glaze over before they start reading.
Why It Happens
You're trying to include everything you know. You're afraid of leaving something out. You think "more information = more persuasive." It's the opposite.
The Fix
"Turn this text into 3 bullet points with icons for each one. No more than one sentence per point."
"This slide has too much text. Simplify it to one headline and 3 key points. Each point should be 5 words or fewer."
"Replace this paragraph with a visual. What's the one number or image that says the same thing? Show that instead."
"Strip this slide back to just the headline and one supporting visual. If someone can't understand it in 5 seconds, there's too much on it."
Mistake 2: No Visual Hierarchy
The Symptom
Everything on the slide is the same size, the same weight, the same colour. Nothing stands out. The viewer's eye wanders around looking for what matters and doesn't find it.
Why It Happens
You treated every element as equally important. Or the default styling made everything look the same. When nothing is emphasised, nothing is memorable.
The Fix
"Make the key number 3x larger than everything else on this slide. It should be the first thing the eye sees."
"This slide has no focal point. Pick one element — the most important metric, the headline, or the CTA — and make it dominate the slide. Everything else should be smaller and lighter."
"Create a clear reading order: hero element at the top (largest), supporting detail in the middle (medium), secondary information at the bottom (smallest)."
"The revenue number should be massive. The label should be small. The trend arrow should be medium. Right now everything is the same size — there's no hierarchy."
Mistake 3: Inconsistent Styling
The Symptom
One slide has rounded cards, another has square ones. Fonts change between slides. Some slides have a dark background, some light, with no pattern. The deck feels like it was made by three different people.
Why It Happens
You built slides one at a time without thinking about the whole deck. Or you copied elements from different sources. Or you gave the AI different style directions for different slides without a deck-wide brief.
The Fix
"Match the style of slide 3 across all slides — same card style, same font treatment, same spacing."
"Make the whole deck consistent: same background colour on every slide, same card borders, same font sizes for headlines. Right now each slide looks like a different deck."
"Apply a consistent visual system across all slides — same colours, same layout grid, same spacing between elements. Use our brand colours everywhere."
"This deck has no visual consistency. Set a deck-wide style: dark backgrounds, light text, brand accent for highlights, consistent card treatments. Then rebuild each slide to match."
Mistake 4: Weak Opening
The Symptom
The first slide is a company logo, a tagline, and maybe a date. It's a title page, not a hook. The viewer has no reason to pay attention. The most interesting slide is buried on slide 4.
Why It Happens
Convention. Every template starts with a title slide. Every presentation starts with "Hi, I'm [name] from [company]." It's safe, but it's wasted attention.
The Fix
"Start with a surprising statistic, not our company name. The first slide should make the viewer lean in. Our logo can go on slide 2."
"Redesign the opening slide — lead with the problem, not our brand. 'Sales teams waste 4 hours building every deck' is a better opener than 'Company Name — Sales Platform.'"
"Make the first slide a hook. One provocative question or one striking number. Dark background, large text, nothing else. The viewer should think 'I want to hear more.'"
"The opening should feel like a headline, not a title page. Bold, confident, one idea. Save the company introduction for the second or third slide."
Mistake 5: No Clear CTA
The Symptom
The last slide says "Thank you!" or "Questions?" or shows the company logo and contact details. The viewer finishes the deck and has no idea what to do next. The deck informed them but didn't move them.
Why It Happens
You ran out of steam at the end. You added a "thank you" slide because every deck has one. You forgot that the whole point of the deck is to get someone to take an action.
The Fix
"End with exactly one thing you want them to do. Not 'thank you.' Not 'questions.' One clear CTA: 'Book a demo,' 'Start your free trial,' or 'Let's schedule a call.'"
"Replace the 'Thank You' slide with a bold CTA. One button, centred, brand-coloured. 'Start free' or 'Book a call.' Nothing else on the slide. This is the most important slide in the deck."
"The closing slide should feel like a call to action, not a sign-off. Bold headline that tells them what to do. A single button or link. Remove the logo, social links, and contact details — they distract from the action."
"Make the CTA slide feel decisive. The headline does a word-by-word reveal. The button grows from the centre after a pause. Dark background, one action, maximum impact."
Mistake 6: Starting With Your Company, Not Their Problem
The Symptom
The first few slides are all about you — your history, your team, your mission, your values. The viewer is waiting for the part that's relevant to them. By the time you get to it, they've mentally checked out.
Why It Happens
You're proud of your company (rightly so). You think the viewer needs context before they can understand your solution. In reality, they need to feel the problem before they care about who you are.
The Fix
"Restructure: lead with their problem, not our story. The viewer should feel 'this is about me' on slide 1. Our company story comes after they care about the solution."
"Move the company background to slide 5 or 6. The first 3 slides should be: the problem, why it matters, and what changes. We earn the right to talk about ourselves by showing we understand their world first."
"This deck starts with 3 slides about us. Flip it — start with 3 slides about them. Their pain, their cost, their missed opportunity. Then introduce us as the answer."
Mistake 7: Data Without Context
The Symptom
Numbers on the slide without any frame of reference. "Revenue: £240k." Is that good? Is that bad? The viewer has to decide, and they'll usually decide it's unremarkable because they have nothing to compare it to.
Why It Happens
You assumed the viewer would understand the significance. You forgot that £240k means something very different to a pre-seed startup than to a Series B company. Without context, numbers float.
The Fix
"Add context to every metric. Not just '£240k MRR' — add 'up from £70k last year' or '+340% YoY' or 'top 5% at our stage.' The number needs a benchmark."
"Every metric on this slide needs a 'so what.' Add a comparison badge, a trend arrow, or a benchmark. The viewer should know instantly whether each number is impressive."
"Show our revenue next to the industry average. Our number in brand colour (large), the benchmark in grey (smaller). The gap should be visually obvious."
Mistake 8: Burying the Best Content
The Symptom
The most impressive slide — the traction data, the killer testimonial, the dramatic comparison — is on slide 8 of 12. Half the audience has mentally checked out by then. Your strongest content is performing to the smallest audience.
Why It Happens
You built the deck in chronological order — story first, proof last. You saved the best for the end, like a movie building to a climax. But decks aren't movies. Attention declines from slide 1.
The Fix
"Move our strongest metric to slide 2 or 3. Don't save it for the end — lead with impact, then explain. If someone only sees 3 slides, they should see our best content."
"Restructure: strongest proof first, story second. Lead with the traction number, then explain how we got there. The investor will pay attention to the story if the numbers earned their interest first."
"The testimonial from [big client] is buried on slide 9. Move it up to slide 4 — right after the problem and solution. Social proof early builds trust for everything that follows."
The Quick-Fix Reference
| Mistake | One-Line Fix Prompt |
|---|---|
| Too much text | "Simplify to 3 bullet points with icons, one sentence each" |
| No hierarchy | "Make the key number 3x larger than everything else" |
| Inconsistent styling | "Match the style of slide 3 across all slides" |
| Weak opening | "Start with a surprising statistic, not our company name" |
| No clear CTA | "End with one bold CTA — the only action on the slide" |
| Company-first narrative | "Lead with their problem on slide 1, our story on slide 4" |
| Data without context | "Add '+340% YoY' next to every raw number" |
| Buried best content | "Move our strongest metric to slide 2" |
What to Read Next
- Before & After: 10 Slide Transformations — See these mistakes fixed in side-by-side transformations.
- Typography and Visual Hierarchy — Deep dive into hierarchy, the fix for most slide problems.
- Iterative Refinement: The 3-Prompt Rule — The workflow for fixing any slide in three rounds.