Even a "simple" book like Introducing AutoCAD Civil 3D 2010 really requires a lot of help. Thank you to Lisa Pohlmeyer and Kathryn Duggan, our front line of editorial review—their dedication and efforts helped to make this book possible. Thank you to everyone who has shared their project data, insight, and comments on the last edition—we do appreciate your insight and generosity. Finally, thank you to our families and friends. It's a long process to get a book published, and your patience and kindness along the way doesn't go unnoticed.