The book, 'Building Web Services with Java', has nine authors, here is
the background of one of them (from the book):

'Paul Fremantle is a Senior Technical Staff Member in IBM's Software
division, based in the Hursley Park laboratory near Winchester in England.
Paul works on IBM's Enterprise Service Bus initiative and other Web services
activities in the WebSphere product. Paul has been working on Web services
and XML at IBM since 1999, when he wrote early XML utilities for IBM's
alphaWorks website. Since then he has co-authored The XML Files, an IBM
redbook, as well as a number of articles on J2EE and Web services both in
print and on the Web. Paul's involvement on the WebSphere Application Server
includes architectural responsibility for the first SOAP support, the Web
Services Invocation Framework, and the Web Services Gateway. Paul is the
co-lead of the JWSDL standard in the Java Community Process and has
initiated two open-source projects. Paul has an MSc in computation and an MA
in mathematics and philosophy, both from Balliol College, Oxford.'


. . . given a background like that, one would think they know something
about XML.  Some of the authors consult also but they do not know the
fundamentals, it makes me wonder about the quality of their consulting.


--tc