Distribución del idioma en el mundo: infografica by Alberto Lucas López

http://www.arq4design.com/tododesign/mother-tongues-a-world-of-languages-infographic-by-alberto-lucas-lopez/

There are at least 7,102 known languages alive in the world today. Twenty-three of these languages are a mother tongue for more than 50 million people. The 23 languages make up the native tongue of 4.1 billion people.