Bubble map
As a variation of a bubble chart, bubble maps display bubbles over geographical regions rather than the cartesian plane. The size or area of the bubble indicates the value of the particular variable, with the position on the map indicating location.
More about: Bubble map - Other tutorials: R
Global Refugee displacement by country of origin | 2021
Choropleth map
A choropleth map is a type of thematic map in which areas are shaded or patterned according to a data variable. The variable is categorized into intervals, with each interval represented by a colour, and the map filled accordingly. Colour progression is used to represent the differences, often blending from dark to light or one colour to another.
More about: Choropleth map - Other tutorials: R