To my editor, Christopher Cudmore, at Pearson, who not only encouraged me to write this book but took the time to read and improve draft chapters. His suggestions have made for a much better reading experience. Both you, the reader, and I should be grateful to him for the increased clarity he has brought.
The production team at Pearson did a great job of turning a raw manuscript into the book. I would like to thank Helen MacFadyen and Melanie Carter.