Acknowledgments

I'd like to start by thanking the members of the Apress team whom I worked closely with throughout the writing process, for their guidance and encouragement. I'd like to thank Jonathan Hassell, and in particular Brent Dubi who kept me upbeat as I worked through the dead of night by randomly sending me songs to listen to while I worked. My great thanks also go to my technical editor Tony Champion, who came on board rather late in the process, but expertly picked up numerous issues I had missed, and made some great suggestions.

I would like to thank Greg Harris (www.GregMHarris.com) who donated his time to review several chapters, and provided me with extensive feedback. His feedback with the previous edition was a huge help, and once again he volunteered his time to reviewing several chapters - his contributions have been invaluable. I would also like to thank Peter Gfader who allowed me to pick his brain on duplex communication strategies.