10 essential skills: (8) communicating the data story & presentation
- Pamela Kinga Gill
- Feb 28, 2019
- 3 min read
Updated: Mar 2, 2019
Storytelling is a crucial skill, especially in data analysis and analytics. Data scientists and related professionals should have the ability to express otherwise complex mathematical, statistical, and programmatic procedures, solutions, or products to their end-users and clients. Unfortunately, this is much easier said than done.

Imagine you've solved a complex problem. As a data science wizard, you know the ins and outs of your process and application. But to everyone else, what you've created feels like magic. And no one believes in magic! At least not enough to invest in a solution that looks too much like hocus-pocus!
In a technical domain like data science, the need for superior storytelling is especially pronounced.
Clear and effective communication can bridge the gap between the problem's solution and the adoption of that solution. And so for better or for worse, data scientists must be terrific communicators if they're going to drive strategic insights into actionable results. They must also be competent, coherent, and correct in the stories and conclusions they tell.
Before anything you do
First and foremost: understand the problem you are solving for, aka, solve a problem that actually contributes value (communicate with all stakeholders if necessary, take initiative)
--I once presented a big data solution to an executive only to be told I had committed to solving the wrong problem. The need hadn't aligned with management's expectations. Ouch!
--On the flip side, I've developed solutions to improve only 5% of an operations supply chain.
--My most accomplished solution was something I developed voluntarily after thorough research of a problem that included multiple stakeholders. I presented my solution to everyone, starting from the ground up. Each presentation was an improvement on the last in execution, style, and format. On the final pitch, the organization's senior directors unanimously voted in favour of the proposed solution which is in operation today. I followed every single one of the tenets I share below....
General methods for effective storytelling
Understand the problem
Understand your solution/conclusions
Know your audience
Create a narrative
Connect with emotion
Build a storyline for your presentation (beginning, middle, end. Is there a hero or obstacle?)
Follow the situation-problem-solution-next steps model
Keep it simple and short (I love the technical details too, but this isn't a solutions audit...)
Select only the most appropriate and effective visuals
Be persuasive
Practice cutting your original presentation by 25%-50% and see how the story takes shape
Communication mistakes
Do not... lie
Do not... manipulate the scale of charts
Do not... cherry pick data
Do not... jump to conclusions
Do not... use incorrect visuals for the type of information being shared (this can be misleading)
Do not.... expect the audience to read small print or large paragraphs
Do not... lack clarity (label every axis, provide every source, give all titles, share all measures, etc...)
Do not... drop the context (if something grew by 160%, what/when was the starting estimate?)
Do not...confuse the audience (with inconsistent terms, graphs, colors, titles, etc..)
Do not...waste time or space
Do not...be late
Bonus
Be prepared
Be confident - in the professional context, if confidence is a performance, so be it
Strive for perfection and professionalism
Dress competently
Demonstrate the product or solution
Create a mock product/example that can be delivered to the audience for a hands-on experience
Offer a take-away: product, sample, PDF, demonstration dashboard, infographic, ...
Rehearse your presentation with conviction; focus on clarity, pace, and intonation
Be adaptable, if time runs off course, have a plan to achieve your final conclusion/pitch without hurry
Prepare the presentation space early
Ensure all administrative details are accounted for, and double-check
Be organized: keep all communication materials in a single space that can be retrieved instantly even after many months
Be available/approachable for a follow-up
Keep your methodologies and sources in your back pocket
BE INNOVATIVE: leverage available tools and resources that don't add burden to the audience but facilitate effective communication, demonstration, and storytelling
In sum, communication and presentation skill in storytelling is significant. These skills can be the deciding factor in a hire, sale, investment or successful output. Approach the job of communication with as much care and consideration as the the underlying data science. After all, we operate in a dimension where communication and sharing information propel us forward.
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