Design · Intermediate
Data displays that support a decision
A decision page built from a small dataset. Learn to choose visual encodings that preserve comparisons, make missing data and uncertainty visible, and explain both the recommendation and its limits.
Written by Akis Apostoliadis for Skillfolio · 4 written lessons · Self-paced
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Course price: $59 USD, plus applicable tax. One payment for this course. Compare all-course package prices: $29/month or $299 lifetime.
What you’ll make
A workshop attendance dashboard with a clear question, trustworthy scales and an accessible data table.
Before you begin
Basic percentages and confidence reading a small table. Use a design tool or HTML/CSS.
Who it’s for
Product designers building dashboards and reports.
- Chart selection
- Data hierarchy
- Uncertainty
The complete curriculum
Preview the first lesson free. Purchase unlocks the remaining lessons, project and downloads.
Write the question above the chart
Frame a data display around a specific comparison and calculate the quantities it actually needs.
16 min read · 45 min practice · Free preview
Choose an encoding that preserves comparison
Choose a visual encoding that preserves the intended comparison and avoids misleading emphasis.
16 min read · 45 min practice · Included with purchase
Keep missing data visible
Represent missing values, zero denominators and uncertain records without inventing a result.
16 min read · 45 min practice · Included with purchase
Deliver the decision and its limits
Deliver a decision-oriented data page with transparent calculations, useful limits and an accessible alternative.
16 min read · 60 min practice · Included with purchase
See the work
Where should the organiser investigate?. Completed instructor specimen using fictional teaching material; not a learner result.This course works towards: A workshop attendance dashboard with a clear question, trustworthy scales and an accessible data table.
Explore completed teaching examples and the decisions behind them. These are instructor-authored examples, not learner testimonials.
What’s included
- Original written lessons, worked examples and guided practice.
- A course project, review criteria and reference responses.
- Downloadable course materials for purchased lessons.
Explore the course before committing. Start with the free lesson, or compare other courses.