Preston Gralla

Preston Gralla is an award-winning columnist and author, executive editor for CNet and ZDNet, and a technology columnist for the Dallas Morning News. He has also written about technology for many other publications, including USA Today, the Los Angeles Times, and PC Magazine. As a well-known Internet guru, he appears regularly on many TV and radio shows, including CNN and CNBC. His other books include How the Internet Works, Sixth Edition, and How Wireless Works.