Dejan Sarka, MCT and SQL Server MVP, is an independent consultant, trainer, and developer focusing on database & business intelligence applications. His specialties are advanced topics like data modeling, data mining, and data quality. He is the founder of the Slovenian SQL Server and .NET Users Group. Dejan Sarka is the main author or coauthor of thirteen books about databases and SQL Server. Dejan Sarka also developed and is developing many courses and seminars for SolidQ, Microsoft and Pluralsight.