Acknowledgments

Chris Lewis: I need to thank each of my family for their understanding of my absence from family life while completing this work. My wife Claudia, son Ben, and daughter Lian all accepted my commitment to this project without complaint, and for that I am truly thankful. I also want to thank two other people. First, Brandon Brooks, for helping me find the time on the weekends, and second, Master Paik of Paik's USA Tae Kwon Do, for providing the perfect outlet for dealing with writer's block and improving my focus. Thanks to you both.

Steve Pickavance: I want to thank my wife and my girls for their patience in putting up with my work and constant travel. I would also like to give a huge thank-you to all the folks who contributed to this workTim Szigeti, John Evans, Clarence Filfils, Michael Anderson, Dipesh Patel, and Harry Watson, to name but a few. I'm sure we've forgotten to mention the many others who make the network real every day and who helped by providing their input and expertise to get us here in the first place.