Introduction xv
1 Telling Stories with Data 1
More than Numbers 2
Ask Questions About the Data 8
Design 14
Wrapping Up 20
2 Choosing Tools to Visualize Data 21
Mixed Toolbox 22
Point- and- Click Visualization 23
Programming 31
Mapping 40
Illustration 45
Small Visualization Tools 49
Pencil and Paper 54
Survey Your Options 55
Wrapping Up 57
3 Handling Data 59
Data Preparations 60
Finding Data 60
Collecting Data 65
Loading Data 73
Formatting Data 74
Processing Data 86
Filtering and Aggregating Sampled Data 87
Wrapping Up 89
4 Visualizing Time 91
Trends 92
Events 112
Cycles 131
Wrapping Up 141
5 Visualizing Categories 143
Amounts 144
Parts of a Whole 159
Rank and Order 176
Categories and Time 180
Wrapping Up 192
6 Visualizing Relationships 193
Correlation 194
Differences 212
Multiple Variables 225
Connections 235
Wrapping Up 243
7 Visualizing Space 245
Working with Spatial Data 246
Locations 250
Spatial Distributions 266
Space and Time 283
Wrapping Up 293
8 Analyzing Data Visually 295
Gathering Information 296
Overviews 296
Exploring Details 324
Drawing Conclusions 336
Wrapping Up 337
9 Designing with Purpose 339
Good Visualization 340
Insight for Others 344
Wrapping Up 351
Index 353