Choropleth Maps
A choropleth map is a map of a region with different divisions colored to indicate the value of a specific feature in that division. This division may be a country, state, district, or any other well-documented area.
For example, you can visualize country-wise populations using a world map, state-wise populations on a country map, or the percentage of a population with access to a certain technology with a choropleth map.
Although the term choropleth map may or may not be familiar to you, as you go through the chapter, the concept of choropleth maps will become clearer.
Let's start exploring the different types of choropleth maps.
Worldwide Choropleth Maps
In the first visualization of this chapter, we are going to use the internet usage statistics published on Our World in Data
(https://ourworldindata.org/internet) and present the percentage of the population using the internet in each country from 1990
to 2017
. The dataset is hosted on the book...