original book
download (unzip, open index.html)
ggplot2: elegant graphics for data analysis
Welcome
Preface to the third edition
- Major changes
- Acknowledgements
Preface to the second edition
I Getting started
1 Introduction
2 First steps
II Layers
Introduction
3 Individual geoms
- 3.1 Basic plot types
  - 3.1.1 Exercises
4 Collective geoms
5 Statistical summaries
6 Maps
7 Annotations
8 Arranging plots
III Scales
Introduction
- 8.4 Scale names
9 Position scales and axes
10 Colour scales and legends
11 Other aesthetics
IV The Grammar
12 Mastering the grammar
13 Build a plot layer by layer
14 Scales and guides
15 Coordinate systems
- 15.1 Linear coordinate systems
- 15.2 Non-linear coordinate systems
16 Faceting
17 Themes
V Extending ggplot2
18 Programming with ggplot2
19 ggplot2 internals
20 Writing ggplot2 extensions
21 Case Study: Springs
References
Written with bookdown

7 Annotations