Data Transformation is the process of converting data from one format or structure into another. Coursera's Data Transformation catalogue equips you with the knowledge to effectively manipulate, transform, and clean data for various analytical purposes. You'll learn to convert raw data into a more appropriate format for improved decision-making. You will also understand how to use different data transformation techniques such as normalization, aggregation, and generalization. Additionally, you'll master various methods to handle missing or inconsistent data, and learn how these transformations impact the results of data analysis. This skill is invaluable for roles such as data scientist, data analyst, and business intelligence specialist.