It offers a unique approach to learning XML, this book walk readers through the process of building, completely functional, end-to-end XML solution Featured case studies is an online business product catalog that includes reports, data input / output, workflow, stylesheet formatting, RSS feeds, and integration with external services like Google, eBay, and Amazon's format and presentation of issues to work through the design to come up with solutions to enable the reader to understand how XML markup allows a business to share data across applications internally or with partners or customers even though they may not using the same application