Surface Science Discussions 2022 is an online seminar taking place on 11-12 January, 2022, and featuring lectures from world-class specialists in surface science. The topics of the lectures will concentrate mostly around metal/non-metal compounds at surfaces, with a particular focus on the studies carried out under ultra-high vacuum. The event is organized by the surface science group of Assoc. Prof. Dr. Mikołaj Lewandowski from the NanoBioMedical Centre of Adam Mickiewicz University in Poznań, Poland, and has received the Honorary Patronage of the Rector of Adam Mickiewicz University Prof. Dr. Bogumiła Kaniewska, the Polish Physical Society (Poznań Branch) and the Polish Vacuum Society. Participation in the seminar is free of charge (following the registration). More information can be found on the Internet webpage: www.surfacescience.pl/ssd2022