Excel at Excel with the help of this bestselling spreadsheet guide John Walkenbach's name is synonymous with excellence in computer books that decipher the complexities of Microsoft Excel. Known as "Mr. Spreadsheet," Walkenbach shows you how to maximize the power of Excel 2013 while bringing you...

John Walkenbach aka "Mr. Spreadsheet" is the principal of J-Walk and Associates, Inc. and a Microsoft Excel MVP. He is a leading authority on spreadsheet software and the creator of the award-winning Power Utility Pak. John has written more than 50 books, as well as articles and reviews for...