John Kauffman (Ogdensburg NY) is a trainer and writer working in Asia and North America specializing in connecting databases to the web. While teaching he keeps a list of student questions and mistakes and uses that information as the basis for future material in books.
Chris Hart (Birmingham, UK) is an application developer working on .NET Compact Framework / SQL CE for a UK parcel carrier company. She spent most of t he last four years in the technical editorial team at Wrox Press, and has been programming on a variety of systems since the age of 10. She spends most of her time working with Microsoft technologies, and has been heavily involved with .NET since it was first released as an early alpha preview.
Dave Sussman (Banbury UK) spent the first 10 years of his professional life as a developer, and he's now spent almost as much time as a full time writer. He's written over 25 books for Wrox Press, covering topics such as Access VBA, Visual Basic, ASP and .NET.