There is no more authoritative pair of authors on Querying XML than Jim Melton and Stephen Buxton. Best of all, as readers of Jim's other books know, his informal writing style will teach you what you need to know about this complex subject without giving you a headache. If you need a comprehensive and accessible overview of Querying XML, this is the book you have been waiting the foreword by Don Chamberlin, IBM Fellow, Almaden Research Center XML has become the lingua franca for representing business data, for exchanging information between business partners and applications, and for adding structure and.