Tableau on Twitter: "Dive into @sarahlovesdata's #MakeoverMonday viz to explore the level of press freedom across the world. Hover over the heatmap to see the status of each country: https://t.co/9w3XWbUcVh https://t.co/ZJS9kq9LCz" /
Create a heatmap in Tableau using a dimension - TAR Solutions
Tableau Tutorial: How to create Calendar Heat Map in Tableau