SEAN McGRATH is a leading XML/SGML expert and active member of the XML developer's community. He served as an invited expert for the W3C special interest group that standardized XML. He is Chief Technology Officer of Propylon (www.propylon.com), developers of mobile portal software. His books include XML by Example: Building eCommerce Applications and ParseMe.1st: SGML for Software Developers (Prentice Hall PTR).
About the Series Editor CHARLES F. GOLDFARB is the father of markup languages, a term that he coined in 1970. He is the inventor of SGML, the International Standard on which both XML and HTML are based. You can find him on the Web at www.xmltimes.com