Michael Alexander is a Microsoft Certified Application Developer (MCAD) and author of several books on advanced business analysis with Microsoft Access and Excel. Jared Decker is the co-founder of StatSlice Systems and a certified BI developer with more than 14 years experience training and developing enterprise reporting solutions. Bernard Wehbe a is a veteran BI consultant and co-founder of StatSlice Systems where he helps organizations implement business analytics and data visualization solutions. John Walkenbach is arguably the foremost authority on Excel. He has written more than 30 books and maintains the popular Spreadsheet Page at www.j-walk.com/ss.