1 book read from 1 country out of 13 countries in South America

2 books read from 1 country out of 14 countries in Oceania

2 books read from 2 countries out of 23 countries in North America

4 books read from 4 countries out of 46 countries in Europe

3 books read from 3 countries out of 50 countries in Asia

4 books read from 4 countries out of 54 countries in Africa