"Learning XML: Creating Self-Describing Data" by Erik T. Ray is a textbook published by O'Reilly Media in 2003. The book covers the subject of programming languages with a focus on XML, general programming, and enterprise applications. It is written in English and has 401 pages. The 2nd edition features detailed explanations and examples to help readers understand how to create self-describing data using XML. This trade paperback is designed for adult education and further education levels, providing a comprehensive resource for learning XML.