From 1998 until 2005 Professor Maciej Zarow taught at the Jagiellonian University where he defended his PhD and achieved specialisation in endodontics. He is the co- author of more than 100 scientific papers and author of a book called Endo-Prosthodontics: Guidelines for Clinical Practice. His second book Veneers has just been published in Polish and English version. 2012-2016: editor-in-chief of the Medycyna Praktyczna - Stomatologia. Since 2020 Prof. Zarow has been editor-in-chief of Polish edition of Quintessence Int. and an active member of the Polish Academy of Aesthetic Dentistry, v-ce president of European Society of Cosmetic Dentistry and Country Chair Person of ESCD in Poland. Visiting Professor of University in Chieti (Italy) 2015-2016, lecturer for postgraduate master programs at UIC in Barcelona (since 2012), Prof. Zarow is a Honorary Member of Style Italiano since 2013 and Kois Centre Mentor (Seattle, USA) since 2021.