Thanks to Joan O'Neil, Kevin Commins, Mary Daniello, Laura Walsh, and others at John Wiley & Sons for their enthusiasm, support, and expert knowledge.

Many thanks to my literary agent, Alice Fried Martell, for her faith and diligence. Joyce Hergenham and Dr. Steve Kerr of General Electric were extremely helpful in preparing this book. Support for the book also was provided by Art and Lorena Goeller, Randall Michler, Barbara Yagerman, and Bill Bryant.