Write and Design your Data Story, Step-by-Step Playbook

Why is storytelling so important?

One of the oldest ways humans transmit information is by telling stories.


Science has shown that people read information, but they feel a good story, and feeling a good story makes it memorable.

Studies into how we learn show that we retain only 10% of what we read, 15% of what we hear and 75% of what we see. We also process images 60,000 times faster than text and tend to focus on visual information. What's more, we have the unique ability to remember images with at least 90% accuracy. 

From there, we can write that smartly presenting data appeals to the heart as much as the mind.

Combining the persuading power of insights from data with narrative engagement makes data storytelling compelling.

Its role is to make the bridge between data analytics (generating insights and visually presenting them) and communication (the art of storytelling).

How to start?

The winning starting point is to focus your attention on the human elements of a dataset to pinpoint more clearly what is at stake (why should your audience care).

Once this first objective has been clearly defined, take the time to ask yourself the following question:

  • Is what I present going to enable my audience to make a decision, or am I going to enrich a discussion that will lead to a decision?

If the answer is no, you need to review your objective.

A successful presentation should always put your audience in a situation where they can make a decision (even if that decision is to validate your point of view).

What’s next?

Developing a solid and convincing data story is a step-by-step process:

1. Understand your audience

The first stage determines the rest of the process.
The general idea can be understood at a glance.
However, be careful: understanding your audience takes a little time.

But it is worth the effort.

The more you understand your audience, the better equipped you are to tell your story appropriately.

Let’s start by investigating the following classic 5 W’s questions.

Here is a list of questions you can use to prepare yourself:

2. Build your narrative flow

Objective: Make your point, feed a discussion and get the decision you desire

How to get there?

Let’s consider the following 2-step scheme:

  1. Storyboarding

    Select relevant information that matches your audience's expectations and allows you to make your point.
    Then, define the order so the audience feels inspired to act.

  2. Writing your Story (special thanks to Brent Dykes)

    One common way to structure your story is the following (based on the famous Freytag’s Pyramid):

One last thing ….. Kill your darlings!

The most common pitfall at this stage is overcomplicating the story by not resisting the temptation to pack your data story with every piece of information. So, be careful.

3.  Lay out the information

Once your narrative flow has been drafted, it's time to select the visuals containing the data you'll use to support the story's thread.

Whether your story takes the shape of a dashboard or a presentation based on a deck of slides, the following rules will help you enormously:

  • Choose the right graph formats

    For example:

    • Line charts are more effective for highlighting trends over time.

    • Bar charts are recommended for comparisons.

    • Pie charts highlight the different parts that make up a whole.

    • Scatter diagrams identify relationships between variables.

    • Heat maps are ideal for showing the relationship between two variables in a raster format using colours.

  • Layout: hierarchy, clarity, minimalism and accessibility.

    • Hierarchy

      More prominent elements attract attention first.

      Consequently, and quite logically, you will:

      • Vary the data size according to the importance of each piece of information.

      • Play with colour contrast to accentuate essential information.

        In the case of a dashboard, indicate the paths you want users to take.
        Anchor your images with text, arrows, annotations, and other visual cues to guide users.

        And if your data follows a logical structure, you'll follow it :-)

    • Design: Minimalism is the key.

      Your audience should be able to discern significant patterns and trends at a glance. The only rule to follow is to keep it simple. Cluttered visualisations blur the message.

      Here are a few tips to ensure optimal reading quality:

      • No unnecessary labels

      • No excessive grid lines

      • Colours: define a strategy before you start.
        Here, too, the rule is simplicity. Fewer different colours, more shades and a series of rules for use in line with the hierarchy of the information and their relative importance.

      • Typefaces: Choose one of the most legible typefaces.
        The size and style of the chosen font should once again prioritise clarity, producing an aesthetically pleasing display free from unnecessary distractions.

      • No complicated layouts that confuse or mislead.
        This doesn't mean that your visuals have to be boring. There are many ways of using colour, layout and typography to combine aesthetic appeal with effective communication.

        Are you in any doubt?

        Our design team can give you a hand.

    • Accessibility

      Good practice exists regarding colour blindness and compatibility with screen readers to ensure inclusive access to information and comply with ethical and legal standards. We'll return to this in a specialised article.

    • Testing and feedback

      Ultimately, only a test with a few audience members will enable you to validate whether your device works and gather some enriching feedback.

  • How to ensure a validation before you present

    When the stakes are high, validating what you are ready to present is advisable.

    Two challenges are on the agenda:

    • Pre-check with your audience

      Having conversations with your audience about the topic ahead of time can give you an idea of their familiarity with it and collect possible scepticism about your point.

    • Senior leadership buy-in

      A preliminary discussion with someone with a high degree of influence over the topic will help secure buy-in from senior leadership before the presentation.

4. Share or present your insights

If you can access a Power BI Service, you can share reports or dashboards with other members of the same workspace.

 If not, integrating Power BI and PowerPoint offers you a solution.

 Here's how it works:

  • From Power BI, you can integrate visuals, dashboards and reports directly into PowerPoint slides.

  • Exporting retains the interactive elements, allowing you to explore the data and obtain information without Power BI.

  • You can rearrange, resize, and format visuals in PowerPoint for visually appealing slides.

  • Power BI visuals are stored in the presentation file, eliminating the need for an Internet connection or a Power BI service.

Final note

Whatever your job or role in the organisation, you are surrounded by data containing hidden treasures that are not difficult to exploit.

And you've realised by now: the work doesn't stop there.

Selling the findings of your own analyses is not something you can improvise.

And while the job is not complicated, it does require special attention.

I hope you have found this article useful.

Don't hesitate to contact me if you'd like to discuss it.

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