*MUM 2025, the 24th International Conference on Mobile and Ubiquitous Multimedia* *Enna, Italy, December 1-4, 2025* MUM 2025, the 24th International Conference on Mobile and Ubiquitous Multimedia, will be held in Enna, Italy, December 1st –4th. MUM is an interdisciplinary forum for advances in research of mobile and ubiquitous multimedia systems, applications, and services. At MUM, academics and practitioners discuss challenges and achievements in this field from diverse perspectives, such as interaction techniques, user research, system development, software solutions, and devices. This edition of MUM aims to continue the tradition of innovation and excellence in research established by previous MUM conferences. We invite contributions to the following tracks: • Posters, max 3 pages long (excluding references) • Demos, max 3000 words (excluding references) • Doctoral Colloquium: 2-4 pages Timeline (all deadlines are AoE): • Submission deadline: October 9, 2025 • Notification deadline: October 23, 2025 More details and submission information: mum-conf.org <http://mum-conf.org?utm_source=chatgpt.com>