Dear Colleagues, This is a final reminder that the deadline for abstract submission for the *113th Peripatetic Seminar on Sheaves and Logic (PSSL 113)* is *31 July 2026*. The conference will take place at the Université catholique de Louvain, in Louvain-la-Neuve, Belgium, on *26–27 September 2026*. Conference website: https://sites.uclouvain.be/pssl113 Contributed talks on all aspects of category theory and its applications are welcome. Abstracts should be at most one page, including references, and should be submitted using the template available on the conference website. *Important dates:* - *31 July 2026:* Abstract submission deadline. - *15 August 2026:* Registration deadline. - *26–27 September 2026:* PSSL 113. Attendance is free, but registration is required. For enquiries, please contact *pssl.113.uclouvain@gmail.com*. We look forward to receiving your submission and to welcoming you in Louvain-la-Neuve. Best regards, Marco Abbadini, Marino Gran, Tim Van der Linden and Enrico Vitale