Some countries in the world do not have their own currency. It could be because their economies are too small or some other factors. For instance, a few countries in West and Central Africa use the West African CFA franc and the Central African CFA franc respectively. These countries are former colonies of France and these currencies were created by France to maintain stability and financial control many decades ago.

I came across the following neat infographic that shows the countries that do not have their own currency:

Click to enlarge

Source: Insight Artist