Tag: data storytelling

16 Feb 2026
Your Data Slides Are Killing Your Presentation. Here's How AI Can Fix That.

Your Data Slides Are Killing Your Presentation. Here’s How AI Can Fix That.

The CFO had pasted an entire Excel tab β€” thirty-seven rows of quarterly figures β€” onto a single slide. Then he asked the board to “take a moment to absorb the numbers.”

Quick answer: AI data visualisation for presentations can transform unreadable spreadsheet dumps into clear, persuasive visual charts β€” but only when you tell it what the data means first. The process is not “paste my data and make it pretty.” It’s a three-step human-led workflow: decide the insight (what does this data prove?), choose the visual type (comparison, trend, composition, or distribution), then use AI to generate, label, and refine the chart. AI handles the visual execution. You handle the strategic thinking. The result is data slides that make a point rather than display a table.

At Commerzbank, I sat through a quarterly review where the Head of Risk presented a slide with a forty-two-cell table comparing capital adequacy ratios across eight business lines and four quarters. Every cell was filled. Every number was accurate. Nobody in the room knew what it meant.

After the meeting, the Group Treasurer said to me: “I have no idea whether we’re in trouble or not.” The data was perfect. The communication was useless.

I helped him rebuild that slide. We replaced the table with a single bar chart showing one thing: which business lines were above the threshold and which were below. Three were red. The rest were green. The next board meeting lasted half the time and produced twice the decisions. Same data. Different visual. Completely different outcome.

Why Data Tables Fail in Executive Presentations

Data tables work in reports. They fail in presentations. The reason is cognitive: a table asks the reader to perform analysis, while a chart provides the analysis already completed. When you paste a spreadsheet into a slide, you’re asking your audience to do the work you should have done before the meeting.

Senior executives are processing information from dozens of sources across dozens of meetings. They don’t have the cognitive bandwidth to scan forty-two cells, identify the relevant comparisons, and draw their own conclusions β€” all while you’re talking over the top of the slide. A data table in a presentation is not information. It’s a homework assignment.

The result is predictable. Executives either tune out (because the table is overwhelming), or they focus on the wrong number (because without visual hierarchy, every number looks equally important). Either way, your data fails to do its job, which is to support a specific point that drives a specific decision.

This is why data-heavy presentations often backfire with executives. The problem isn’t the data. It’s the format. And this is precisely where AI can help β€” not by thinking for you, but by transforming your thinking into a visual that communicates instantly.

PAA: Why do data-heavy slides fail in presentations?
Data tables require the audience to perform their own analysis β€” scanning cells, making comparisons, and drawing conclusions β€” while simultaneously listening to the presenter. Executive audiences don’t have the cognitive bandwidth for this. Charts solve the problem by pre-digesting the analysis: they show the conclusion visually so the audience can absorb the insight in seconds rather than minutes. The presenter’s job is to decide the insight first, then choose a visual format that makes that insight obvious.

Turn Data Into Decisions β€” Not Decoration

AI-Enhanced Presentation Mastery includes the complete data visualisation workflow: the Insight–Implication–Action framework, AI prompt sequences for chart creation, and the visual decision matrix that tells you which chart type to use for any dataset. Self-study programme β€” join anytime.

Join AI-Enhanced Presentation Mastery β†’ Β£249

Self-study programme with live support. Join anytime β€” all released modules available immediately. Built from 24 years presenting financial data in corporate banking. Check course page for current pricing and session details.

The Insight-First Method (Before You Touch AI)

The biggest mistake people make with AI data visualisation is starting with the data. They paste a spreadsheet into an AI tool and ask it to “make a chart.” The result is a technically correct but strategically useless visualisation β€” because AI doesn’t know what point you’re trying to make.

Before you touch AI, answer one question: What does this data prove?

Not “what does this data show” β€” that’s a description. “What does this data prove” forces you to state a conclusion. Examples of the difference:

“This data shows Q3 revenue by region” β†’ a description that leads to a table.
“This data proves that EMEA revenue recovered faster than expected” β†’ an insight that leads to a chart with EMEA highlighted.

“This data shows customer satisfaction scores” β†’ a description that leads to a grid.
“This data proves that satisfaction dropped in the two months after the platform migration” β†’ an insight that leads to a trend line with the drop circled.

Once you have the insight, you can tell AI exactly what to visualise β€” and more importantly, what to emphasise. “Create a bar chart of Q3 revenue by region. Highlight EMEA in gold. Grey out all other regions. Add a horizontal line showing the forecast.” That prompt produces a useful chart because you’ve done the thinking. AI does the drawing.

This is the Insight–Implication–Action framework we teach in the course: every data slide should state the insight (what the data proves), the implication (what it means for the audience), and the action (what needs to happen next). AI can’t generate any of those three things. But once you’ve defined them, AI can create the visual that communicates them instantly.


(770Γ—450)Insight-First Method showing three steps: decide the insight then choose the visual then use AI to create and refine

πŸ“Š Want the complete Insight–Implication–Action framework and AI prompt sequences?

AI-Enhanced Presentation Mastery includes the data storytelling module with before/after transformations and the visual decision matrix.

Join AI-Enhanced Presentation Mastery β†’ Β£249

How AI Transforms Data Into Visual Clarity

Once you’ve identified the insight, AI becomes genuinely powerful. Here’s the workflow for transforming a data-heavy slide into a clear visual:

Step 1: Give AI the data AND the insight. Don’t just paste your spreadsheet. Tell AI what you want the audience to take away. “Here is our quarterly revenue data. The key insight is that EMEA recovered to 94% of target while APAC stayed at 71%. Create a horizontal bar chart that makes this comparison obvious. Use gold for EMEA and grey for APAC. Include a vertical line at the 100% target.” The more specific your instruction, the more useful the output.

Step 2: Ask AI to simplify, not add. AI’s instinct is to include everything. Your instinct should be to remove everything that doesn’t support the insight. “Remove the gridlines. Remove the exact values from bars under 50%. Make the chart title a complete sentence: ‘EMEA Revenue Recovered to 94% β€” APAC Still Lagging.'” The best data slides look almost empty. That’s the point β€” the insight should be impossible to miss.

Step 3: Use AI to generate the headline. Your slide title should state the conclusion, not describe the content. AI is excellent at rewriting “Q3 Revenue by Region” into “EMEA Recovery Outpaced Forecast β€” APAC Needs Intervention.” Give AI your insight and ask it to write a headline that a time-poor executive would understand without looking at the chart. If the headline alone tells the story, you’ve succeeded.

This three-step process β€” insight, simplify, headline β€” takes five minutes per slide and produces results that are dramatically more persuasive than any table, regardless of how much data that table contains.

If you want to go deeper on how to match your AI prompts to executive presentation needs, the key is always the same: tell AI what the data means before asking it to visualise the data.

PAA: How do I use AI to create charts for presentations?
Start by defining the insight your data proves β€” not just what it shows. Then give AI both the data and the insight in a single prompt, specifying the chart type, what to highlight, and what to remove. Ask AI to write the slide headline as a complete sentence that states the conclusion. The process takes about five minutes per slide and produces charts that communicate instantly rather than requiring the audience to decode a table.

From Spreadsheet Dump to Executive Clarity

Module 6 of AI-Enhanced Presentation Mastery covers data storytelling in depth β€” including the Insight–Implication–Action framework, the visual decision matrix, AI prompt sequences for chart transformation, and before/after examples from real executive presentations. Study at your own pace.

Join AI-Enhanced Presentation Mastery β†’ Β£249

Self-study programme with live Q&A calls. Join anytime β€” all released modules available immediately. Check course page for current pricing and session details.


Before and after comparison showing spreadsheet table transformed into a clear highlighted bar chart with insight headline

The Four Chart Types That Cover 90% of Executive Data

You don’t need twenty chart types. You need four. Almost every data insight an executive needs to communicate falls into one of these categories:

1. Comparison: “How do these things stack up?” Use horizontal bar charts. Revenue by region, performance by team, budget vs actual. AI prompt: “Create a horizontal bar chart comparing [X]. Highlight the top performer in gold and the underperformer in red. Grey out the middle. Title should state who’s winning.”

2. Trend: “What’s changing over time?” Use line charts. Revenue trajectory, customer satisfaction over quarters, headcount growth. AI prompt: “Create a line chart showing [X] over [time period]. Highlight the inflection point where the trend changed. Add a brief annotation explaining what caused the change. Title should state whether the trend is positive or negative.”

3. Composition: “What’s the breakdown?” Use stacked bars or pie charts (but only for 3–5 segments β€” more than five and the pie becomes useless). Revenue mix, cost allocation, market share. AI prompt: “Create a stacked bar chart showing [X] breakdown. Highlight the largest segment. Title should state what dominates.”

4. Distribution: “Where does the data cluster?” Use scatter plots or histograms. Customer segments by value, project risk ratings, team performance distribution. AI prompt: “Create a scatter plot showing [X] vs [Y]. Circle the outliers. Title should state the pattern β€” whether it’s clustered, spread, or has notable outliers.”

When you’re unsure which chart type to use, ask yourself: “Am I comparing, tracking, breaking down, or distributing?” The answer picks the chart. Then tell AI which category and let it handle the execution. This is considerably more effective than the approach covered in data storytelling fundamentals, because AI handles the visual execution while you focus entirely on the strategic framing.

πŸ“Š The visual decision matrix and AI prompt templates for all four chart types are inside the course.

AI-Enhanced Presentation Mastery includes the complete data visualisation system β€” frameworks, prompts, and before/after examples.

Join AI-Enhanced Presentation Mastery β†’ Β£249

What AI Cannot Do With Your Data (The Human Part)

AI is excellent at the mechanical parts of data visualisation β€” creating charts, formatting them, writing headlines, standardising colours. But there are four things AI cannot do, and they’re the four things that actually matter:

AI cannot decide what’s important. Your dataset might contain fifty data points. Only three of them matter to your audience. Which three? That depends on who’s in the room, what they care about, and what decision you’re asking them to make. This is strategic judgment, not data analysis. AI can’t do it.

AI cannot read the political room. Sometimes the data shows something uncomfortable β€” a team underperforming, a region in decline, a project over budget. How you visualise that data depends on whether you’re presenting to the team responsible (where diplomacy matters) or to the board (where directness matters). AI doesn’t know the politics. You do.

AI cannot tell you what’s missing. The most dangerous data slide is the one that’s technically accurate but strategically incomplete. If your chart shows revenue growth but doesn’t show margin erosion, it’s misleading. AI won’t flag what you’ve left out. Only someone who understands the full business context can do that.

AI cannot determine the “so what.” Every data slide needs to answer one question: “So what?” Revenue grew 12% β€” so what? Is that good? Compared to what? What should we do about it? The “so what” is the entire point of the slide, and it requires human judgment about context, expectations, and next steps.

The best data slides are 80% human thinking and 20% AI execution. AI makes the visual. You make the point.


Four things AI cannot do with your data: decide importance, read the room, spot what is missing, determine the so what

PAA: Can AI replace human thinking in data presentations?
No. AI is excellent at the visual execution β€” creating charts, formatting them, writing headlines β€” but it cannot determine what’s important, read political dynamics in the room, identify what data is missing, or decide the “so what” that makes a slide actionable. The most effective workflow uses AI for 20% of the work (visual execution) and human judgment for 80% (strategic framing, audience awareness, and insight selection). AI is the pen. You’re the author.

Learn the Complete System for Executive Data Slides That Drive Decisions

AI-Enhanced Presentation Mastery teaches you the human-led, AI-assisted approach to executive presentations β€” including the Insight–Implication–Action framework, the visual decision matrix, AI prompt sequences, and the data storytelling techniques built from 24 years presenting financial data in corporate banking and 15 years coaching executives through high-stakes decision meetings.

Join AI-Enhanced Presentation Mastery β†’ Β£249

Self-study programme with live support. Join anytime β€” all released modules available immediately. Built from 24 years presenting financial data in corporate banking + 15 years coaching executives. Check course page for current pricing and session details.

Frequently Asked Questions

What if my audience expects to see the full data table?

Put the table in the appendix. Present the chart in the main deck. If someone asks “where are the detailed numbers?” you say “slide 22 in the appendix” and continue with your insight. This gives you the best of both worlds: visual clarity in the presentation and full data availability on request. In twenty-four years of corporate banking, I’ve found that the executives who request the detailed table almost never actually read it β€” they just want to know it’s there.

Which AI tools are best for data visualisation?

Any AI tool that can process text prompts and generate charts works β€” ChatGPT, Claude, Copilot in PowerPoint. The tool matters less than the prompt. A specific prompt (“Create a horizontal bar chart comparing Q3 revenue by region, highlight EMEA in gold”) produces dramatically better results than a vague prompt (“Make a chart from this data”) regardless of which tool you use. The Insight-First Method works with any AI platform.

How do I handle sensitive financial data with AI tools?

If your data is confidential, use anonymised or rounded figures for the AI-generated chart, then manually replace them with the real numbers in your final slide. AI needs the structure and proportions to create the right visual β€” it doesn’t need the exact numbers. Alternatively, use AI only for the chart template and formatting, then input your data directly. Many organisations have approved AI tools with enterprise-grade data protection for this purpose.

Does this work for non-financial data?

The Insight-First Method works for any data type: project timelines, customer satisfaction scores, employee engagement metrics, operational KPIs, marketing funnels. The principle is the same β€” decide the insight before you create the visual, tell AI what to emphasise, and write a headline that states the conclusion. The four chart types (comparison, trend, composition, distribution) cover 90% of any data you’ll present in a corporate setting.

πŸ“¬ The Winning Edge Newsletter

Weekly strategies for executive presentations, AI-enhanced workflows, and career-critical stakeholder communication. No fluff.

Subscribe free β†’

🎯 Free: 10 Essential AI Prompts for Executive Presentations

Includes the data visualisation prompts for all four chart types, plus headline rewriters and the slide clarity check sequence.

Download free β†’

Related: Data slides are one piece of the puzzle. If you’ve been thrown into a last minute presentation and need to build a complete deck fast, the 5-slide emergency framework helps you decide which data to include and which to cut β€” before you start visualising anything.

Stop pasting spreadsheets into slides. Decide the insight first. Choose the right visual. Let AI handle the execution. Your audience will thank you β€” and your data will finally do its job.

🎯 Learn the human-led, AI-assisted approach to executive presentations.

Join AI-Enhanced Presentation Mastery β†’ Β£249

About the Author

Mary Beth Hazeldine is the Owner & Managing Director of Winning Presentations. With 24 years of corporate banking experience at JPMorgan Chase, PwC, Royal Bank of Scotland, and Commerzbank, she spent two decades watching executives paste spreadsheets into slides β€” and helping them transform that data into visuals that actually drove decisions.

A qualified clinical hypnotherapist and NLP practitioner, Mary Beth combines executive communication expertise with modern AI-enhanced workflows to help leaders present data with clarity and conviction.

Book a discovery call | View services

26 Dec 2025
Data storytelling - how to make numbers compelling and drive decisions

Data Storytelling: How to Make Numbers Compelling (Not Boring)

Turn spreadsheets into stories that drive decisions β€” techniques from 24 years of presenting to boards, credit committees, and investors

I once watched a colleague present 47 slides of flawless analysis to a credit committee. Every number was accurate. Every chart was properly labelled. The recommendation was sound.

They said no.

The problem wasn’t the data. It was the delivery. He presented numbers. He should have told a story with numbers. That’s the difference between data presentation and data storytelling β€” and it’s the difference between getting polite nods and getting decisions.

After 24 years in banking β€” presenting to boards at JPMorgan, credit committees at RBS, investors at Commerzbank β€” I’ve learned that the analysts who get promoted aren’t the ones with the best spreadsheets. They’re the ones who make data mean something.

🎁 Free Download: Executive Presentation Checklist β€” includes the data slide framework from this article. Print-ready PDF.

What Is Data Storytelling (And Why It Matters)

Data storytelling is the practice of building a narrative around data to help your audience understand and act on insights. It combines three elements: the data itself, the visualisation, and the narrative that connects them.

Here’s why it matters:

Data alone doesn’t persuade. Stanford research found that statistics presented with stories are 22 times more memorable than statistics alone. Numbers tell people what. Stories tell people why it matters.

Decisions are made emotionally. Neuroscientist Antonio Damasio’s research shows that people with damage to emotional brain centres can’t make decisions β€” even with perfect logic. Your CFO may think they’re purely analytical, but they’re not. Nobody is.

Attention is limited. The average executive spends 2-4 minutes reviewing a slide before moving on. If your data doesn’t land immediately, it doesn’t land at all.

Data storytelling isn’t about dumbing down your analysis. It’s about making your analysis accessible to people who don’t have time to interpret it themselves.

Related: How to Present to a CFO: The Finance-First Framework

The Data Storytelling Framework: Lead With Insight

Most presenters structure data slides like this:

Here’s the data β†’ Here’s what it shows β†’ Here’s what we should do

That’s backwards. By the time you reach your point, you’ve lost them.

Effective data storytelling reverses the order:

Here’s the insight β†’ Here’s the data that proves it β†’ Here’s what we should do

This is the “lead with the headline” approach. Your audience knows immediately what they’re looking at and why it matters. The data becomes evidence, not a puzzle to solve.

Example: Before and After

Before (Data-First):

“Q3 revenue was Β£4.2M. Q2 was Β£3.8M. Q1 was Β£3.5M. Year-over-year we’re up 12%. The EMEA region grew 18% while Americas grew 6%…”

The audience is doing mental maths, trying to figure out the point.

After (Insight-First):

“EMEA is now our growth engine β€” up 18% while Americas stalls at 6%. If we shift Q4 marketing budget accordingly, we can capture another Β£400K.”

Same data. Completely different impact.

Related: The Executive Summary Slide: How to Write the Only Slide That Matters

Data storytelling framework - lead with insight, support with data, end with action

5 Data Storytelling Techniques That Work in Business

These are the techniques I use with clients β€” from biotech fundraising decks to banking board presentations.

1. The Comparison Anchor

Numbers mean nothing without context. “Β£2.3 million” is abstract. “Β£2.3 million β€” that’s 3x what we spent last year for half the results” creates meaning.

Always anchor your data to something your audience already understands:

  • Compare to last year / last quarter
  • Compare to competitors or industry benchmarks
  • Compare to targets or forecasts
  • Compare to a familiar reference point

Example: “Our customer acquisition cost is Β£47. The industry average is Β£62. We’re 24% more efficient β€” and here’s why that matters for our Q1 targets…”

2. The Single Number Focus

When everything is important, nothing is important. Pick the one number that matters most and build your slide around it.

I learned this the hard way. Early in my career, I’d cram every relevant metric onto a slide. The result? Decision-makers couldn’t see the forest for the trees.

Now I ask: “If they remember only one number from this slide, what should it be?” That number gets visual prominence. Everything else supports it.

3. The Trend Line Story

A single data point is a fact. Multiple data points are a trend. Trends tell stories.

Weak: “Churn rate is 4.2%”

Strong: “Churn has dropped from 6.1% to 4.2% over eight months β€” the interventions are working”

When presenting trends, always explain the inflection points. What happened in March that changed the trajectory? That’s where the story lives.

4. The “So What” Test

For every data point, ask yourself: “So what?”

“Revenue grew 12%” β€” So what?
“Revenue grew 12%, which means we’ve hit our trigger for the expansion budget” β€” Now I understand why this matters.

If you can’t answer “so what” for a piece of data, it probably doesn’t belong in your presentation.

5. The Contrast Frame

Show what the data could have been β€” or what it will be if nothing changes.

Example: “At current trajectory, we’ll miss target by Β£800K. With this intervention, we close the gap entirely.”

Contrast creates stakes. Stakes create attention.

Related: Team Dashboards That Tell a Story (Not Just Show Numbers)

Turn Your Data Into Stories That Drive Decisions

The Executive Slide System (Β£39) includes templates specifically designed for data-heavy presentations.

What’s included:

  • The “Insight-First” data slide template
  • Before/after examples from real executive presentations
  • The single-number-focus framework
  • Dashboard templates that tell stories

Get the Executive Slide System β†’

Common Data Storytelling Mistakes (And How to Avoid Them)

After reviewing hundreds of data presentations, I see the same mistakes repeatedly.

Mistake 1: Showing all the data. Your analysis might require 50 data points. Your presentation needs 5. The rest belongs in the appendix. Include only what’s necessary to support your narrative.

Mistake 2: Letting the chart speak for itself. No chart is self-explanatory to a busy executive. Always add a headline that states the insight, not just a label that states the topic. “Q3 Revenue by Region” is a label. “EMEA Drives 70% of Q3 Growth” is an insight.

Mistake 3: Choosing the wrong chart type. Pie charts for trends. Bar charts for composition. Line charts for 15 data points. Match the visualisation to the story you’re telling:

  • Trends over time β†’ Line chart
  • Comparison between categories β†’ Bar chart
  • Part-to-whole relationships β†’ Pie or stacked bar (with few segments)
  • Correlation β†’ Scatter plot

Mistake 4: Burying the lead. The most important insight should be visible within 3 seconds. If your audience has to hunt for the point, they won’t.

Mistake 5: No clear action. Data without a recommendation is just information. Always end data slides with what you want the audience to do with this information.

Data Storytelling in Practice: A Real Example

A biotech client came to me with a fundraising deck. Their data slide looked like this:

Title: “Clinical Trial Results”
Content: A table with 12 rows of efficacy data, p-values, confidence intervals, and patient subgroup breakdowns.

Scientifically rigorous. Completely ineffective for investors who see 20 decks a week.

We restructured it:

Title: “87% Response Rate β€” 2x the Standard of Care”
Content: One large number (87%), one comparison bar showing vs. standard of care (43%), and a single line of supporting text about statistical significance.

The detailed data moved to the appendix. The story stayed on the slide.

They raised Β£18 million.

Related: Storytelling in Presentations: The NLP Techniques That Captivate Any Audience

πŸ“¬ Get Weekly Presentation Tips

Every week, I share one actionable tip for presenting data, handling tough audiences, and getting decisions. No fluff, no spam β€” just techniques that work.

Subscribe to The Winning Edge β†’

Frequently Asked Questions About Data Storytelling

How do I tell a story with data without oversimplifying?

Simplifying isn’t dumbing down β€” it’s respecting your audience’s time. Keep the full analysis available (in appendix or backup slides) but lead with the insight. If someone wants to drill into methodology, they’ll ask. Most won’t.

What if my audience wants to see all the numbers?

Some audiences do β€” especially technical or financial reviewers. In these cases, structure your presentation in layers: executive summary with key insights first, then supporting detail, then full data appendix. Let them choose their depth.

How do I present data that tells a negative story?

Lead with the insight anyway β€” but frame it constructively. “We’re 15% behind target” is a problem. “We’re 15% behind target, and here’s the recovery plan that closes the gap by Q4” is a story with a path forward. Never hide bad data; contextualise it.

How many data points should one slide have?

As few as possible to make your point. For most business presentations, that’s 1-3 key metrics per slide. If you need more, ask yourself if you’re actually making multiple points that deserve multiple slides.

Should I use AI tools for data visualisation?

AI can help generate initial visualisations, but always review and refine. Tools like Copilot are good at creating charts quickly but often miss the storytelling elements β€” the headlines, the annotations, the “so what.” Use AI for speed, then add the human insight layer.


Master Data Storytelling + Persuasion + AI Tools

AI-Enhanced Presentation Mastery includes a dedicated module on data storytelling β€” how to structure data slides, choose visualisations, and build narratives that drive decisions.

8 self-paced modules (January–April 2026):

  • Module 4: Data Storytelling β€” turn numbers into narratives
  • The S.E.E. Formula for persuasive messaging
  • The 132 Rule for executive presentations
  • AI workflows for faster deck creation
  • Handling tough Q&A and hostile audiences

Plus: 2 live coaching sessions (April 2026) with personalised feedback.

Presale price: Β£249 (increases to Β£299, then Β£499)

60 seats total. Lifetime access.

See the full curriculum β†’

Your Next Step: Apply the Insight-First Framework

Data storytelling isn’t a talent β€” it’s a technique. Start with one change: on your next data slide, write the insight as your headline, not the topic.

Instead of “Q3 Sales Performance,” write “Q3 Sales Exceeded Target by 12% β€” Here’s What Drove It.”

That single shift transforms how your audience receives the information.

🎁 START FREE: Download the Executive Presentation Checklist β€” includes the data slide framework from this article.

πŸ“˜ GET THE TEMPLATES (Β£39): The Executive Slide System gives you ready-to-use data slide templates with the insight-first structure built in.

πŸŽ“ MASTER IT ALL (Β£249): AI-Enhanced Presentation Mastery β€” includes a full data storytelling module plus 7 more modules on structure, persuasion, and delivery. January–April 2026.


Mary Beth Hazeldine spent 24 years in corporate banking at JPMorgan, PwC, Royal Bank of Scotland, and Commerzbank β€” where she learned that the analysts who get promoted aren’t the ones with the best spreadsheets, but the ones who make data mean something.