A good visualization can communicate the nature and potential impact of information and ideas more powerfully than any other form of communication.

For a long time "dataviz" was left to specialists--data scientists and professional designers. No longer. A new generation of tools and massive amounts of available data make it easy for anyone to create visualizations that communicate ideas far more effectively than generic spreadsheet charts ever could.

What's more, building good charts is quickly becoming a need-to-have skill for...