Dejan Sarka, MCT and SQL Server Most Valuable Professional, is an independent trainer and consultant who focuses on the development of database and business intelligence applications, located in Ljubljana, Slovenia. Besides his projects, he spends around half of his time on training and mentoring. He is the founder of the Slovenian SQL Server and .NET users group. Dejan is the main author and coauthor of many books and courses about databases and SQL Server. He is a frequent speaker at many worldwide events.