We are pleased to announce the Call for Participation for the first international Transactions in Category Theory (TACT 2025). Transactions in Category Theory is a workshop focused on applications of category theory to other fields. TACT is a hybrid workshop hosted at the University of Strathclyde on the 2nd of June 2025. Registration is now open at this link. Logistical information may be found on the TACT website, including a preliminary schedule, and a list of accepted abstracts. Hope to see you in sunny Glasgow! The Organisers You're receiving this message because you're a member of the Categories mailing list group from Macquarie University. To take part in this conversation, reply all to this message. View group files<https://outlook.office365.com/owa/categories@mq.edu.au/groupsubscription.ashx?source=EscalatedMessage&action=files&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Leave group<https://outlook.office365.com/owa/categories@mq.edu.au/groupsubscription.ashx?source=EscalatedMessage&action=leave&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Learn more about Microsoft 365 Groups<https://aka.ms/o365g>