Steven Holzner has been writing about XML about as long as XML has been around. He's written 63 books, all on programming topics, and selling well over a million copies. His books have been translated into 16 languages around the world and include a good number of industry bestsellers. He's a former contributing editor of PC Magazine, graduated from MIT, and received his Ph.D. at Cornell. He's been on the faculty of both MIT and Cornell.