Official translations are generally documents that serve as legally valid instruments. They include anything from certificates of birth, death or marriage through to academic transcripts or legal contracts. Roberto Mayoral deals with the very practical problems of official translating. He points out the failings of traditional theories in this field and the need for revised concepts such as the virtual document, pragmatic constraints, and risk analysis. He details aspects of the social contexts, ethical norms, translation strategies, different formats, fees, legal formulas, and ways of solving the most frequent problems. Care is taken to address as wide a range of cultural contexts as possible and to stress the active role of the translator.