Knowing how to speak two languages is not the same thing as knowing how to translate. Translation is a special skill that professionals work hard to develop.
In their book Found in Translation, professional translators Nataly Kelly and Jost Zetzsche give a spirited tour of the world of translation, full of fascinating stories about everything from volunteer text message translators during the Haitian earthquake rescue effort, to the challenges of translation at the Olympics and the World Cup.
The importance of good translation is most obvious when things go wrong.
Here are some examples from the book that show just how high-stakes the job of translation can be.