Alluvial Diagram

The flow chart type is useful for showing changes over time across categories. The geometry is similar to a stacked area chart but with spacing and order changes.

Tutorials and Guides


Deaths by Firearm, Compared Against Injury-Related Deaths

Among 1- to 19-year-olds, regulations decreased motor vehicle deaths, but deaths by firearms increased and became the leading mechanism in 2018.

Imports to Russia from countries that imposed sanctions and not

For The Washington Post, Andrew Van Dam, Youjin Shin and Alyssa Fowers plotted…

Change in Common Household Types in the U.S.

In the 1970s, the most common household type in the U.S. was a married couple with kids. Things are different now.

Seeing How Much We Ate Over the Years

How long will chicken reign supreme? Who wins between lemon and lime? Is nonfat ice cream really ice cream? Does grapefruit ever make a comeback? Find out in these charts.

How your state makes electricity

The way we make electricity in America is changing. For The New York…

State of birth, by state and over time

We’ve seen migration within the United States before, but Gregor Aisch, Robert Gebeloff,…