In this chapter, you have learned how to prepare data and why it is very important to clean data before starting to analyze it in detail. You have also looked at the rich functionalities that SAP Lumira offers to prepare and enrich data. We have discussed several techniques, such as merging and appending datasets, splitting column values, creating various hierarchies, creating new objects, and so on. These techniques will help you to prepare and produce better visualizations in the next chapter.