Gyula O.H. Katona is a research professor emeritus at HUN-REN Alfréd Rényi Institute of Mathematics and its former director as well. Gyula is an author of 170 research papers mostly in the area of extremal set theory and applications of combinatorics. Gyula is also a member of the editorial boards of 15 mathematical journals and a member of the Hungarian Academy of Sciences.Balázs Patkós is a research professor at HUN-REN Alfréd Rényi Institute of Mathematics and an author of almost 100 research papers as well as a co-author of the book "Extremal Finite Set Theory". Balázs is also an associate editor of the journal Discrete Mathematics and Order.Casey Tompkins is a researcher at HUN-REN Alfréd Rényi Institute of Mathematics and an author of more than 50 research articles. Casey is also the co-organizer of multiple seminars, conferences and workshops as well as an instructor at the Budapest Semesters in Mathematics program.