Today we are going to be talking about how to keep order in data and make life with Tableau even much easier. And the key to that, as we all know, are the hierarchies, sets, and groups. In this context, we certainly will try to find out how to build the order of subordination of the lowest elements to the highest, and vice versa and also concentrate on the basics of working with dynamic and static sets, and of course, we’re going to be dealing with the formation of groups within categories.