Kasper de Jonge is a Principal Program Manager on the BI team at Microsoft, where he has worked on developing features for Power BI, Power Pivot and other Analysis Services products such as the Tabular model and Multidimensional cubes. He is a frequent speaker at conferences such as TechEd, SQLPASS, and SQLSaturday. His blog can be found at http://www.kasperonbi.com and can also be found at twitter http://twitter.com/kjonge. He is also author of Dashboarding and Reporting with Power Pivot and Excel.