About the Author

John Walkenbach is a leading authority on spreadsheet software and is principal of JWalk and Associates Inc., a small, San Diego-based consulting firm that specializes in spreadsheet application development. John is the author of more than two dozen spreadsheet books and has written more than 300 articles and reviews for a variety of publications, including PC World, InfoWorld, Windows, and PC/Computing. He also maintains The Spreadsheet Page, a popular Internet Web site (www.j-walk.com/ss), and is the developer of Power Utility Pak, an award-winning add-in for Microsoft Excel. John graduated from the University of Missouri and earned a master's and a Ph.D. from the University of Montana.

In addition to computers and spreadsheet software, John's other interests include guitar, music, novels, digital photography, and puttering around in the garden.

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