This book is an accessible introduction to lexicography - the study of dictionaries.Dictionaries are used at home and at school, cited in law courts, sermons and parliament, and referred to by crossword addicts and Scrabble players alike. Lexicography provides a detailed overview of the history, types and content of these essential references. Howard Jackson analyzes a wide range of dictionaries, from those for native speakers to thematic dictionaries and those on CD-ROM, to reveal the ways in which dictionaries fulfil their dual function of describing the vocabulary of E