Bob has been involved in semantic web work since 2002. He is a senior technical writer at Ontotext, makers of the GraphDB triplestore and related products. Previously, Bob did RDF and SPARQL solution architecture at TopQuadrant and data and systems architecture at Moody's Investors Service and LexisNexis.
he is the author of Manning Publications' XSLT Quickly, Prentice Hall's XML: The Annotated Specification and SGML CD, and McGraw Hill's Operating Systems Handbook. Bob has written for Nodalities Magazine, O'Reilly Network's XML.com, Dr. Dobb's Journal, and IBM developerWorks. He received his BA in Religion from Columbia University and his Masters in Computer Science from New York University. In the XML.com newsletter, editor Kendall Clark once wrote "Does anyone write tech prose as clear as Bob?"
Contact him at bob@ this domain name, especially if you have problems with examples in the book. For more general SPARQL questions, see RDF Community Discussions.