At five years old, Toby Little decided to send letters to all countries of the world. With the help of his mother, Toby began writing and sending letters to all kinds of people, both children and adults. Recipients ranged from scientists in Antarctica, to game-keepers in chad and even the Pope. The letters not only reached their recipients, but the world responded. Hola, Mundo, Como estas? is a compilation of the most beautiful, amazing, and touching letters ever sent and received. It shows that the world is only as big as your imagination and is full of potential friends, waiting to be discovered, no matter where you live.