Karol Grela, was born in Warsaw, Poland in 1970. He received a Master degree from Warsaw University of Technology in 1994, and received his PhD degree from the Institute of Organic Chemistry, Polish Academy of Sciences (PAS), in 1998. As Alexader von Humboldt Scholar, he spent one year in the Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany, just in time to be present at the blooming of metathesis methodology in the laboratories of Professor Alois Fürstner. Next, he returned to Warsaw, and completed his Habilitation in 2003 at the Institute of Organic Chemistry, PAS. In 2008 he was promoted to Full Professor. Since 2008, he is also a Director of newly formed group at the Biological and Chemical Research Centre of the Faculty of Chemistry, University of Warsaw. He is the member of Editorial boards of Chemistry–A European Journal, European Journal of Organic Chemistry, Chemistry Select, and a fellow of ChemPubSoc Europe.