About the Author John Walkenbach is the author of more than two dozen spreadsheet books. Visit his Web site at http://www.j-walk.com. Brian Underdahl is the well-known, best-selling author of nearly 60 computer books including several current titles from Hungry Minds: Pocket PCs For Dummies, Internet Bible, 2nd Edition, Teach Yourself Windows 2000 Professional, and Teach Yourself Office XP. Brian spends most of his time at the keyboard writing about personal computing. When he finds the time, he enjoys taking in the view from the home he and his wife Darlene built in the mountains 2,000 feet above Reno, Nevada. He tries to find the time to attend Mensa meetings whenever possible, and has become a fairly decent gourmet cook in recent years, too.