Thomas "Tom" Martens has been awarded as a MSFT Data Platform MVP and works as Lead Expert at b.telligent (www.btelligent.com). For 20+ years Tom delivers Business Intelligence, Data Warehousing and Analytics solutions. Tom is helping organizations off all sizes to become data driven and to adapt the Power BI ecosystem as needed. Next to hat his other interests are about the visualization of data and applying analytical methods to small and large amounts of data. Tom is a regular speaker at conferences like SQL Server Konferenz, SQL Saturdays, PASS Summit and also speaks at local user groups. Tom is the co-writer of the book "Pro DAX"