The “Round the World Relay in Combinatorics” was held from 11 am KST of June 8 to 9 am KST of June 9. O-joung Kwon (권오정) from the Incheon National University and the IBS Discrete Mathematics Group gave a talk at the Discrete Math Seminar organized as a part of the “Round the World Relay in Combinatorics” at 3 pm KST. His talk was about classes of intersection digraphs and their bi-min-width. The title of his talk was “Classes of intersection digraphs with good algorithmic properties“.