O’Reilly Media, 2002. - 400 Pages. ISBN: 978-0-596-00252-7, ISBN 10: 0-596-00252-1.
The W3C's XML Schema offers a powerful set of tools for defining
acceptable XML document structures and content. While schemas are
powerful, that power comes with substantial complexity. This book
explains XML Schema foundations, a variety of different styles for writing
schemas, simple and complex types, datatypes and facets, keys,
extensibility, documentation, design choices, best practices, and limitations.
Complete with references, a glossary, and examples throughout.