THE UNICODE STANDARD provides a unique code number for every character in electronic text, no matter what the platform, no matter what the application, no matter what the language. It is required for XML and is at the tore of modern software products. Unicode 4.0 contains 96,248 characters covering languages of the world. The Unicode Standard contains extensive descriptions of each writing system, as well as definitions of character properties and detailed conformant requirements. It is the complete and definitive user's guide for novices and experts alike. THIS EDITION, The Unicode Standard, Version 4.0, adds 47,188 new characters for minority and historic scripts, several sets of symbols, and a very large collection of additional CJK ideographs. It provides updated specifications covering structure, conformant, character behavior and semantics, as well as implementation guidelines, detailed discussions of writing systems, comprehensive charts, and an extensive glossary. The accompanying CD-ROM includes the text of all the Unicode Standard Annexes and the entire Unicode Character Database. THE UNICODE CONSORTIUM is a non-profit organization founded to develop, extend, and promote the use of the Unicode Standard. The membership of the Consortium represents a broad spectrum of corporations and organizations in the computer and information processing industry. The Unicode Consortium actively cooperates with many of the leading standards development organizations, including ISO/IEC JTC1, W3C, IETF, and ECMA. THE PRINCIPAL AUTHORS AND EDITORS OF The Unicode Standard, Version 4.0, are Joan Aliprand, Julie Allen, Joe Becker, Mark Davis, Michael Everson, Asmus Freytag, John Jenkins, Mike Ksar, Rick McGowan, Lisa Moore, Eric Muller, Michel Suignard, and Ken Whistler. As members of a wide range of organizations at the forefront of globalization technology, they comprise a source of unrivaled internationalization expertise.