Kalen Delaney is a Data Platform MVP who has worked with SQL Server for 30 years. She has provided performance consulting services and taught advanced courses on SQL Server to thousands of people and organizations. In addition to her courseware development, Kalen has been writing about SQL Server for decades. She is the primary author of SQL Server Internals and the Inside SQL Server series. Kalen is also one of the primary editors for the Red Gate SQL Server Stairways tutorials.