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Books by John Walkenbach (J-Walk and Associates, Inc., San Diego, CA )
John Walkenbach, known to his fans as Mr. Spreadsheet, has written some 50 books and around 300 articles on computer topics, predominantly Excel. He created the award-winning Power Utility Pak and several other versatile Excel add-ons. John maintains the Spreadsheet Page at http://spreadsheetpage.com.