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Course CWS-028

Communicating Data and Numbers Clearly

Organisations generate more data than ever, but numbers only create value when people understand them and act on them. The outline covers Principles of Data Communication, Choosing the Right Chart, Designing Clear Visual...

  • 5 daysClassroom or online
  • 49Upcoming dates
  • 12Cities
  • €1,825Fees from
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Communicating Data and Numbers Clearly
Next online class Live virtual classroom 7 - 11 December 2026 · €1,625 + VAT Next classroom session London 7 - 11 December 2026 · €2,915 + VAT

Your week at a glance

  1. Day 1 Principles of Data Communication
  2. Day 2 Choosing the Right Chart
  3. Day 3 Designing Clear Visuals
  4. Day 4 Writing About Numbers
  5. Day 5 Data Storytelling and Presentation

Choose your format and date

  • 5 days
  • 09:00–14:00
  • Certificate of attendance

Classroom sessions

  1. 7–11 Dec 2026

    London

    Next date
    €2,915 + VAT
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  2. 14–18 Dec 2026

    Barcelona

    €2,275 + VAT
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  3. 21–25 Dec 2026

    Frankfurt

    €2,175 + VAT
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  4. 4–8 Jan 2027

    Rome

    €2,830 + VAT
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  5. 11–15 Jan 2027

    London

    €2,915 + VAT
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  6. 18–22 Jan 2027

    Barcelona

    €2,275 + VAT
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  7. 25–29 Jan 2027

    Frankfurt

    €2,175 + VAT
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  8. 1–5 Feb 2027

    Frankfurt

    €2,175 + VAT
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  9. 8–12 Feb 2027

    Vienna

    €3,425 + VAT
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  10. 15–19 Feb 2027

    London

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  11. 22–26 Feb 2027

    Barcelona

    €2,275 + VAT
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  12. 1–5 Mar 2027

    Barcelona

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  13. 8–12 Mar 2027

    Frankfurt

    €2,175 + VAT
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  14. 15–19 Mar 2027

    Amsterdam

    €3,215 + VAT
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  15. 22–26 Mar 2027

    London

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  16. 5–9 Apr 2027

    London

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  17. 12–16 Apr 2027

    Barcelona

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  18. 19–23 Apr 2027

    Frankfurt

    €2,175 + VAT
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  19. 26–30 Apr 2027

    Cape Town

    Lowest fee
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  20. 3–7 May 2027

    Dubai

    €2,845 + VAT
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  21. 10–14 May 2027

    London

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  22. 17–21 May 2027

    Barcelona

    €2,275 + VAT
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  23. 24–28 May 2027

    Frankfurt

    €2,175 + VAT
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  24. 7–11 Jun 2027

    London

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  25. 14–18 Jun 2027

    Barcelona

    €2,275 + VAT
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  26. 21–25 Jun 2027

    Frankfurt

    €2,175 + VAT
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  27. 5–9 Jul 2027

    Barcelona

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  28. 12–16 Jul 2027

    Frankfurt

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  29. 19–23 Jul 2027

    Istanbul

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  30. 26–30 Jul 2027

    London

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  31. 2–6 Aug 2027

    London

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  32. 9–13 Aug 2027

    Barcelona

    €2,275 + VAT
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  33. 16–20 Aug 2027

    Frankfurt

    €2,175 + VAT
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  34. 23–27 Aug 2027

    Kuala Lumpur

    €2,425 + VAT
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  35. 6–10 Sep 2027

    London

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  36. 13–17 Sep 2027

    Barcelona

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  37. 20–24 Sep 2027

    Frankfurt

    €2,175 + VAT
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  38. 4–8 Oct 2027

    Frankfurt

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  39. 11–15 Oct 2027

    Munich

    €2,425 + VAT
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  40. 18–22 Oct 2027

    London

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  41. 25–29 Oct 2027

    Barcelona

    €2,275 + VAT
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  42. 1–5 Nov 2027

    Barcelona

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  43. 8–12 Nov 2027

    Frankfurt

    €2,175 + VAT
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  44. 15–19 Nov 2027

    Paris

    €2,810 + VAT
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  45. 22–26 Nov 2027

    London

    €2,915 + VAT
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  46. 6–10 Dec 2027

    London

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  47. 13–17 Dec 2027

    Barcelona

    €2,275 + VAT
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  48. 20–24 Dec 2027

    Frankfurt

    €2,175 + VAT
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  49. 27–31 Dec 2027

    Rome

    €2,830 + VAT
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Online / Live sessions

  1. 7–11 Dec 2026

    Live virtual classroom

    Next date
    €1,625 + VAT
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  2. 14–18 Dec 2026

    Live virtual classroom

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  3. 21–25 Dec 2026

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  4. 4–8 Jan 2027

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  5. 11–15 Jan 2027

    Live virtual classroom

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  6. 18–22 Jan 2027

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  7. 25–29 Jan 2027

    Live virtual classroom

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  8. 1–5 Feb 2027

    Live virtual classroom

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  9. 8–12 Feb 2027

    Live virtual classroom

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  10. 15–19 Feb 2027

    Live virtual classroom

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  11. 22–26 Feb 2027

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  12. 1–5 Mar 2027

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  13. 8–12 Mar 2027

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  14. 15–19 Mar 2027

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  15. 22–26 Mar 2027

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  16. 5–9 Apr 2027

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  17. 12–16 Apr 2027

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  18. 19–23 Apr 2027

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  19. 26–30 Apr 2027

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  20. 3–7 May 2027

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  21. 10–14 May 2027

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  22. 17–21 May 2027

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  23. 24–28 May 2027

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  24. 7–11 Jun 2027

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  25. 14–18 Jun 2027

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  26. 21–25 Jun 2027

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  27. 5–9 Jul 2027

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  28. 12–16 Jul 2027

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  29. 19–23 Jul 2027

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  30. 26–30 Jul 2027

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  31. 2–6 Aug 2027

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  32. 9–13 Aug 2027

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  33. 16–20 Aug 2027

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  34. 23–27 Aug 2027

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  35. 6–10 Sep 2027

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  36. 13–17 Sep 2027

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  37. 20–24 Sep 2027

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  38. 4–8 Oct 2027

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  39. 11–15 Oct 2027

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  40. 18–22 Oct 2027

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  41. 25–29 Oct 2027

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  42. 1–5 Nov 2027

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  43. 8–12 Nov 2027

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  44. 15–19 Nov 2027

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  45. 22–26 Nov 2027

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  46. 6–10 Dec 2027

    Live virtual classroom

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  47. 13–17 Dec 2027

    Live virtual classroom

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  48. 20–24 Dec 2027

    Live virtual classroom

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  49. 27–31 Dec 2027

    Live virtual classroom

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Introduction

Course overview

Organisations generate more data than ever, but numbers only create value when people understand them and act on them. Too often, important findings are lost in cluttered charts, dense tables and reports that leave readers unsure what the data means. Communicating data well is now an essential skill for professionals in every function, not only analysts.

This Communicating Data and Numbers Clearly training course teaches participants how to turn numbers into clear, accurate and persuasive messages. Participants learn how to identify the key insight, choose the right chart, design clean visuals, write about numbers in plain language, provide context and comparison, and present data to non-specialist audiences.

The course is practical and tool-neutral, so participants can apply the principles in spreadsheets, presentation software and reporting tools they already use.

View full course outline

What you will achieve

Learning objectives

  • Explain why data communication fails and how to avoid common mistakes
  • Identify the key message within a data set
  • Select appropriate chart types for different comparisons
  • Design clean, accurate and accessible charts and tables
  • Write about numbers clearly in reports and emails
  • Provide context, comparisons and uncertainty appropriately
  • Build data stories that lead to decisions
  • Present data confidently to non-specialist audiences

Who should attend

Target audience

  • Managers who report performance figures
  • Analysts and management information professionals
  • Finance and planning professionals
  • Project and programme managers
  • Researchers and policy officers
  • Communications professionals working with data

Methodology

Learning approach

  • The course is hands-on. Participants critique real-world charts, redesign cluttered visuals, choose chart types for different scenarios, write data summaries and build a short data story from a sample data set. Peer review and trainer feedback help participants refine their work.

Complete course outline

Five focused days of learning and application

The timings provided are estimates and may vary depending on the number of participants and the discussions taking place during the sessions. They are indicative only and do not constitute a binding commitment.

Day 1

Principles of Data Communication

  1. Why data often fails to influence decisions
  2. Understanding the audience and their questions
  3. Finding the insight before choosing a chart
  4. Accuracy, honesty and avoiding misleading visuals
  5. Coffee break
  6. Accuracy, honesty and avoiding misleading visuals (continued)
  7. Basic numeracy concepts every communicator needs
  8. Examples of excellent and poor data communication
  9. Exercise: critiquing charts from published reports

Day 2

Choosing the Right Chart

  1. Comparisons, trends, distributions and relationships
  2. Bar, line, scatter and other common chart types
  3. When to use tables instead of charts
  4. Avoiding pie charts, three-dimensional and decorative charts
  5. Coffee break
  6. Avoiding pie charts, three-dimensional and decorative charts (continued)
  7. Small multiples and dashboards in moderation
  8. Matching chart type to the key message
  9. Workshop: selecting charts for business questions

Day 3

Designing Clear Visuals

  1. Removing clutter and unnecessary chart elements
  2. Using colour purposefully and accessibly
  3. Writing titles that state the message
  4. Labels, annotations and highlighting key points
  5. Coffee break
  6. Consistent scales and honest axes
  7. Designing readable tables with clear formatting
  8. Exercise: redesigning a cluttered chart

Day 4

Writing About Numbers

  1. Rounding, rates, percentages and percentage points
  2. Giving context through comparison and benchmarks
  3. Explaining change, trends and variance clearly
  4. Communicating uncertainty, ranges and confidence
  5. Coffee break
  6. Communicating uncertainty, ranges and confidence (continued)
  7. Avoiding statistical jargon with general audiences
  8. Writing data commentary for performance reports
  9. Workshop: writing a data summary for executives

Day 5

Data Storytelling and Presentation

  1. Structuring a data story with a clear narrative
  2. Sequencing charts to build understanding
  3. Linking insights to recommendations and actions
  4. Coffee break
  5. Linking insights to recommendations and actions (continued)
  6. Presenting data confidently to non-specialists
  7. Handling questions and challenges about the numbers
  8. Final presentation of a data story with feedback
  9. Personal action plan for communicating data

Ready to book?

Communicating Data and Numbers Clearly

Next session: 7 - 11 December 2026, London

Register See all dates

Course FAQs

Questions about this course

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What does Communicating Data and Numbers Clearly (CWS-028) cover?

This course covers Communication and Writing Skills through a structured five-day outline focused on practical application, discussion, and implementation planning.

When is the next available session?

The next scheduled session starts on 7 - 11 December 2026. See the course schedules section for the available dates and delivery formats.

Who should attend this course?

Managers who report performance figures, Analysts and management information professionals, Finance and planning professionals

Is bilingual course delivery available?

Yes. All course materials and presentations are provided in English, while bilingual explanation and discussion support may be available depending on the selected location and trainer availability. For example, when attending a course in Istanbul, you may request a Turkish-speaking trainer to explain the English course content in Turkish. Arabic explanation support may also be requested at this location. Other languages are available in selected cities. You can choose your preferred language support as an optional preference during registration.

How can I register for a session?

Use any Register button next to the available course dates to open the participant registration page and submit your booking request for the selected session.

Is this course available online as well as classroom-based?

Check the course schedules section for currently published classroom and Online / Live sessions.

Where are classroom sessions delivered?

Current classroom venues include London, Barcelona, Frankfurt, Rome, Vienna, Amsterdam, Cape Town, Dubai, Istanbul, Kuala lumpur, Munich, Paris.

How long is the training programme?

The programme runs for five days from 09:00 to 14:00, which gives 25 contact hours, including a daily 30-minute break (22.5 hours of instruction).