To the folks at Sams—especially Mark Taber, Scott Meyers, John Purdum, and Andy Beaster. No author can produce a tutorial like this on his own, regardless of what my agent told Sams during contract negotiations. Their excellent work will give me plenty to take credit for later on. To Laura Lewin at the Studio B agency, who worked hard on my behalf in regard to this title and many others. To my wife, Mary, and my sons, Max, Eli, and Sam. Although our family has not fulfilled my dream of becoming a high-wire trapeze team like the Flying Wallendas, I'm the world's proudest husband in a non-acrobatic family.