Paul McFedries is a Microsoft Office expert and full-time technical writer. Paul has been authoring computer books since 1991 and has more than 85 books to his credit, which combined have sold more than 4 million copies worldwide. His titles include the Que Publishing books Formulas and Functions with Microsoft Excel 2013 and Windows 8.1 In Depth (with coauthor Brian Knittel), as well as the Sams Publishing book Windows 7 Unleashed. Paul is also the proprietor of Word Spy (www.wordspy.com), a website devoted to lexpionage, the sleuthing of new words and phrases that have entered the English language. Please drop by Paul's personal website at www.mcfedries.com or follow Paul on Twitter at twitter.com/paulmcf and twitter.com/wordspy.