Amounts and proportions

Content for Monday, June 16, 2025–Friday, June 20, 2025

Readings

Required readings

Foundational principles:

• Chapter 6 in Fundamentals of Data Visualization (Wilke 2018)
• Chapter 6 in The Truthful Art (Cairo 2016)
• Chapter 10 in Fundamentals of Data Visualization (Wilke 2018)

Specific plot types:

• Engaging Readers with Square Pie/Waffle Charts
• Understanding Pie Charts
• Video from the Financial Times about the design decisions behind their COVID-19 tracking charts

Slides

The slides for this week’s lesson are available online as an HTML file. Use the buttons below to open the slides either as an interactive website or as a static PDF (for printing or storing for later). You can also click in the slides below and navigate through them with your left and right arrow keys.

View all slides in new window Download PDF of all slides

Tip

Fun fact: If you type ? (or shift + /) while going through the slides, you can see a list of special slide-specific commands.

Videos

Videos for each section of the lecture are available at this YouTube playlist.

• Introduction
• Reproducibility
• Amounts
• Proportions

You can also watch the playlist (and skip around to different sections) here:

References

Cairo, Alberto. 2016. The Truthful Art: Data, Charts, and Maps for Communication. Berkeley, California: New Riders.

Wilke, Claus E. 2018. Fundamentals of Data Visualization. Sebastopol, California: O’Reilly Media. https://clauswilke.com/dataviz/.