When you start noticing that you're duplicating the same DAX in lots of measures, calculation groups can come to the rescue. They may sound scary and complicated, but in this session we'll show you that they are really very approachable and incredibly useful. You'll learn what they are and how to create them and we'll explore key features and usage scenarios. Once you see how much they can simplify your life, you'll start looking for excuses to use calculation groups in all your models!