The  WSeS-11 and the ISOCS-30 organizers have reached an agreement with Phosphorus Sulfur, Silicon Relat. Elem. to jointly publish the proceedings of the two symposia. The journal is, once again, proud to be supporting the broad chalcogen chemistry community through sponsorship of the 11th Workshop of the Selenium and Sulfur Redox and Catalysis Network, which will be held in Torun, Poland, from July 25-26 2024 and of the International Symposium on the Organic Chemistry of Sulfur, which will be held in Florence, Italy from July 28-August 02, 2024. We hope that all participants will contribute their poster, oral presentation, invited or plenary lecture for inclusion in the Conference Proceedings