Thorsten Papenbrock is a researcher and lecturer at the Hasso Plattner Institute at the University of Potsdam in Germany. He received his M.Sc. in IT-Systems Engineering in 2014 and his Ph.D. in Computer Science in 2017. His thesis on Data Profiling-Efficient Discovery of Dependencies inspired many sections of this book. In research, his main interests are data profiling, data cleaning, distributed and parallel computing, database systems, and data analytics.