Karli Watson is a freelance IT specialist, author, and developer. He is also a technical consultant for 3form Ltd. (www.3form.net) and Boost.net (www.boost.net), and an associate technologist with Content Master (www.contentmaster.com). For the most part, he immerses himself in .NET (in particular, C#) and has written numerous books in the field. He specializes in communicating complex ideas in a way that is accessible to anyone with a passion to learn, and spends much of his time playing with new technology to find new things to teach people. During those rare times when he isn't doing the above, Karli is probably wishing he were hurtling down a mountain on a snowboard or possibly trying to get his novel published. Either way, you'll know him by his brightly colored clothes. Christian Nagel is a software architect, trainer, and consultant, and an associate of Thinktecture (www.thinktecture.com), offering training and coaching based on Microsoft .NET technologies. His achievements in the developer community have earned him a position as Microsoft Regional Director and MVP for ASP.NET. He enjoys an excellent reputation as an author of several .NET books, such as Professional C#, Pro .NET Network Programming, and Enterprise Services with the .NET Frameworks, and he speaks regularly at international industry conferences. Christian has more than 15 years of experience as a developer and software architect. He started his computing career on PDP 11 and VAX/VMS, covering a variety of languages and platforms. Since 2000, he has been working with .NET and C#, developing and architecting distributed solutions. He can be reached at www.christiannagel.com. Jacob Hammer Pedersen is a systems developer at Fujitsu Service, Denmark. He's been programming the PC since the early 1990s using various languages, including Pascal, Visual Basic, C/C++, and C#. Jacob has co-authored a number of .NET books and works with a wide variety of Microsoft technologies, ranging from SQL Server to Office extensibility. A Danish citizen, he works and lives in Aarhus, Denmark. Jon D. Reid is the director of systems engineering at Indigo Biosystems, Inc. (www.indigobio.com), an independent software vendor for the life sciences, where he develops in C# for the Microsoft environment. He has co-authored many .NET books, including Beginning Visual C# 2005, Beginning C# Databases: From Novice to Professional, Pro Visual Studio .NET, ADO.NET Programmer's Reference, and Professional SQL Server 2000 XML. Morgan Skinner started programming at school in 1980 and has been hooked on computing ever since. He now works for Microsoft as an application development consultant where he helps customers with their architecture, design, coding, and testing. He's been working with .NET since the PDC release in 2000, and has authored several MSDN articles and co-authored a couple of books on .NET. In his spare time he relaxes by fighting weeds on his allotment. You can reach Morgan at www.morganskinner.com. Eric White is an independent software consultant with more than 20 years of experience in building management information systems and accounting systems. When he isn't hunched over a screen programming in C#, he is most likely to be found with an ice axe in hand, climbing some mountain.