DAX Formulas for PowerPivot: A Simple Guide to the Excel Revolution
A former Microsoft engineering leader,Rob Collieis an entrepreneur, author, and consultant who believes Excel is enjoying a renaissance in power and importance - a trend that provides massive opportunities for the millions of Excel practioners worldwide. His passion is empowering and the Excel Professional to seize those opportunities. When he's not training, consulting, or writing, Rob can be found in his laboratory, devising new tools and techniques for the Excel community. He also operates the world's leading PowerPivot website (PowerPivotPro.com) and occassionally sleeps.