Dear colleagues, We are pleased to invite you to join us for a two-day workshop at the School of Information Technologies in Tallinn, Estonia. Registration is free but required, as the capacity of the venue is limited. Details are available on the webpage for the event. CAFÉ 2026 - Tallinn, Estonia. Categorical Applications and Foundations Exchange. 13-14th July 2026. Webpage: https://categories-applications-and-foundations.github.io/cafe2026/ The Categorical Applications and Foundations Exchange (CAFÉ) is a workshop bridging theoretical and applied topics in category theory. CAFÉ 2026 will be hosted in Tallinn on the 13th and 14th of July, and it aims to foster collaboration and community discussion. It invites participation and talk proposals of around 30 minutes on category theory, both foundations and applications, in a broad sense. Registration deadline: June 30, 2026 (AoE, may be extended). Notification: July 3, 2026. Workshop: July 13-14, 2026. Best regards, The organizers, Bryce Clarke, Alessandro Di Giorgio, Elena Di Lavore, Fosco Loregian, and Mario Román.