Francisco Hidalgo, the author of this dictionary, replies: I was inspired to write this dictionary as a result of my experience of more than 30 years as a conference interpreter. An interpreter works in challenging circumstances, with little time to come up with the most appropriate term, which is why one tends to use the word or expression most similar to that of the original language. The problem is, as I explain in the introduction, that the formal similarity does not always coincide with the semantic equivalence. These words that are similar in both languages but have different meanings are what we call false friends. In order to avoid the inappropriate use of language, I came up with the idea some time ago to create a kind of false friends blacklist to be used to warn interpreters. First, I thought about making a short glossary and handing it out to my colleagues, but soon what was going to be a short glossary took on unforeseen dimensions. I then thought that it would be worth writing a real false friends dictionary, so I asked my friend and colleague Lourdes De Rioja to help, and she agreed. We decided that it would be best to produce it in electronic format to enable user interactivity and allow for the inclusion of subsequent corrections. Lourdes took on the task of editing, production and design. Finally, I asked another friend and colleague, Alan Rodger, to give me a hand with the English. As well as revising and correcting the dictionary, he translated the introduction and frequently asked questions.