No author completes a book alone. I have many, many people to thank for helping me complete this book. Thanks to my wife, Sheila, who puts up with my author’s temperament with such grace. Thanks also to my editor, Michelle, whose steadfast support and suggestions for new books keeps me happily busy. Finally, thank you to my technical editor, Catherine, who had to trudge through some dreadful early chapters to get us to this point. I thank you all.