Chris Sells is a Program Manager for the Connected Systems Division at Microsoft. Chris is one of the most widely known and respected authorities on Microsoft .NET. He is a frequent speaker at conferences, and is an author of nine previous books. You can read his blog at sellsbrothers.com.
Michael Weinhardt is a programmer/writer for the Windows Client SDK team at Microsoft. Michael has written for MSDN magazine, often with Chris, and contributed to the Wonders of Windows Forms column on MSDN Online.