Obtained his medical degree from the Medical University of Silesia in Katowice, Poland, in 1986, before pursuing a specialization in internal medicine and gastroenterology. In 1989, he was the recipient of a fellowship from the French Ministry of Foreign Affairs and Laboratoires Fournier, which allowed him to spend two years working in the Splanchnic Haemodynamic Laboratory at Beaujon Hospital in Clichy, Paris, France. In 2005, he was appointed as the Professor of Medicine. Prof. Hartleb is an author of two-volume book entitled “Hepatology Secrets” published in 2022. Since 2021, Prof. Hartleb holds the post of President of the Polish Gastroenterology Society.