An airbed. That was enough to start a millionaire business. We are talking about Airbnb, the portal that allows us to find accommodation anywhere in the world. It doesn't seem so original, does it? How did Brian Chesky, Joe Gebbia and Nathan Blecharczyk manage to transform a room with a few airbeds into such a successful venture? It took a very sharp eye to enable us to sleep peacefully anywhere from Brazil to Norway. This is a tale of failures, success against the odds and new ways of thinking about travel. It is thanks to these that we will find ourselves, suitcases in hand, on the threshold of an Airbnb.