If you look at the mercator map you must think that scandinavia is almost as large as india. But the real dimensions are at the contrary. India is mor than 10 times larger than scandinavia.
And you could realize that africa is a quite small continent. But in reality africa is much larger as europe. Europe could be a small part of africa.
The mercator map does not display the real size of the continents and countries. It is absolutly europe concentrated. Europe is displayed much larger than it realy is. The petersmap gives a much better image of the real world.