The Washington Post has an article called “40 Maps That Explain the World”. They don’t explain the whole world, but this one is interesting:
There are about 7 billion people in the world, and more than 3 billion of them live in 5 countries in that circle: China, India, Indonesia, Bangladesh and Japan. If you throw in the other countries in the circle, like the Philippines and Vietnam, you get another 600 million people. That means 51% of the world’s population lives in that relatively small part of the world.
The map above is number 24 in the list, which is here: