We are proud to inform that Katarzyna Kowal and Katarzyna Zapała attended the INTERNATIONAL COURSE no 2 in Barcelona on September 5-6, 2023. During two hectic days, in addition to the training, there were planned study visits to: the adult school “La Verneda – Sant Marti”, the Catalan Museum of Mathematics and the Gabriel García Márquez Public Library recognized as the best in the world …