Jozef Jurko, Prof. MSc. PhD.: completed his university studies at the Faculty of Mechanical Engineering at the Technical University of Košice in 1991. In 1994 he became a technical assistant in the Faculty of Production Technologies of the University of Košice. In 1999 he successfully completed his doctorate in Machining Technology at the Faculty of Mechanical Engineering at the Technical University of Košice. His doctoral study focused on the problematic machinability of steels. Since his successful defence of his dissertation in 2004 he has worked as a faculty member in the Department of Production Technologies at the Prešov. He is author (co-author) of several monographs, university book, scripts, authorship certificate, more domestic and foreign scientific works in scientific and technical journals, in world current contens journal (CC), in another world databases journal (SCOPUS).