Marek Walesiak is a professor of economics at Wroclaw University of Economics in Department of Econometrics and Computer Science. He holds master, doctoral and habilitation degree from Wrocław University of Economics, Poland, title of professor given by President of Poland. He is a member of the Methodological Commission and Scientific Statistical Council in Statistics Poland (GUS) and an active member of many scientific professional bodies (i.e. Section of Classification and Data Analysis SKAD).