Košice set theory & topology seminar is a long-standing forum founded by Lev Bukovský in 1970s. The seminar is held once a week during a semester at the Institute of Mathematics at Pavol Jozef Šafárik University in Košice. Various topics are discussed at the seminar, ranging from set-theoretic topology, descriptive set theory and cardinal invariants to set-theoretic aspects of convergence and selection principles.