Lecture 2
Visualizing Data
October 7, 2025
Slides & Code
HTML slides • Raw qmd file • R Code
Suggested Reading (from R for Data Science (2e)1)
Beginner:
Chapter 2: Data Visualization
Intermediate:
Chapter 10: Layers
Chapter 11: Exploratory Data Analysis
Chapter 12: Communication
1 Hadley Wickham, Mine Çetinkaya-Rundel & Garrett Grolemund
Useful Resources
Cheatsheets
More ggplot2 Resources
ggplot2 Website • ggplot2: Elegant Graphics for Data Analysis (3e)
R Graphics Cookbook • ggplot2 extensions • awesome ggplot2 2
2 A curated list of awesome ggplot2 tutorials, packages etc.
Other Package Websites
ggrepel • geomtextpath • ggridges • GGally • ggcorrplot • patchwork
ggthemes • hrbrthemes • urbnthemes • bbplot • ggpomological
Other Readings
Data Visualization: A Practical Introduction 3
The Truthful Art: Data, Charts, and Maps for Communication 4
The Visual Display of Quantitative Information 5
3 Kieran Healy
4 Alberto Cairo
5 Edward Tufte