*SECOND CALL FOR PAPERS: 13th International Workshop on Behavior Change Support Systems (BCSS 2025)* Limassol, Cyprus *https://bcssworkshop.wordpress.com <https://bcssworkshop.wordpress.com/>* The 13th Int’l Workshop on Behavior Change Support Systems (BCSS 2025) will be held in conjunction with the 20th International Conference on Persuasive Technology. *Important dates* Submission deadline: March 1, 2025 Decision notification: March 15, 2025 Camera ready: March 28, 2025 Event: May 5, 2025 *Description of the event* The Behavior Change Support Systems (BCSS) workshop, organized in conference style, builds around the concept of information systems specifically designed to help and support attitude or behavior change in individuals or groups. Information technology has the capacity to enable smart, virtual persuasive environments that simultaneously provide multimodal cues and psycho-physiological feedback for personal change by strengthening emotional, social, and physical presence. Numerous persuasive applications have been developed over the past decades with the aim of inducing desirable behavioral changes. These applications have shown promising results in motivating and supporting people to change or adopt new behaviors and attitudes in various domains such as health and wellbeing. The field of persuasive technology continues to be a crucial link between different sciences, necessitating a comprehensive understanding of behavior change support systems and an interdisciplinary approach to their design, implementation, and evaluation. However, the full potential of technologies to shape behaviors and continuously track the progress and outcomes of interventions currently are not used to their full potential. The BCSS workshop seeks to shed new light on the various processes of digital persuasion. Yet, although human-computer interaction is social in nature and people may even see software applications as social actors, it is still mostly unclear how these interactions end-up shaping attitudes, beliefs, and emotions. Additionally, the extent to which these interactions influence behavior, and, even more so, the pitfalls and possible drawbacks of persuasion via technologies are not yet fully understood. Moreover, as people interact with information technologies, they, at the same time, keep modifying their environment as well as adjust their goals during use time. This seems to indicate that digital persuasion is not a one-time, isolated event but rather an ongoing, dynamic process. Since its inception, the BCSS workshop has emphasized the highly interdisciplinary approach required for developing and implementing behavior change support strategies and their associated systems. The workshop provides a scholarly forum connecting multidisciplinary researchers, practitioners and experts from various scientific disciplines such as information systems science, human-computer interaction, industrial design, psychology and medicine. Beyond peer-reviewed scientific paper presentations, discussions and debates on the pillars of BCSSs are being conducted. The theme of this year’s event, *“Generative AI and behavior change support systems: Leveraging innovations for a lasting impact,” *especially seeks, but is not limited to, submissions that utilize cutting-edge technologies such as AI and innovative methodologies in the design, development and implementation of BCSS. The ultimate goal is to create flexible and efficient behavior change support systems that promote long-term behavioral modifications across various domains. *Paper submission* Scientific papers in two categories are sought for (the submission can be either in CEUR or Springer LNCS format): (a) Full papers, max 16 pages. (b) Short papers. 5-9 pages. All the papers will be reviewed by at least two reviewers. Accepted papers will be published via *CEUR Workshop Proceedings* . The workshop will be organized as a hybrid event. Presenting and publishing an accepted paper in the proceedings, however, requires registration in the Persuasive Technology conference. *Additional information* For more information about the workshop and the conference, please visit the links: Link to the BCSS workshop's web site: *https://bcssworkshop.wordpress.com <https://bcssworkshop.wordpress.com/>* Link to the Persuasive Technology conference web site: *https://2025.persuasivetech.org <https://2025.persuasivetech.org/>* For any questions, please contact the Organizing Chair: *Sharon.Nabwire@oulu.fi <Sharon.Nabwire@oulu.fi>* *Conference Committees* *General and Program Chair* Oinas-Kukkonen Harri, University of Oulu, Finland *Organizing Chair* Nabwire Sharon, University of Oulu, Finland *Program Committee* Agyei Eunice, UK Centre for Ecology and Hydrology, United Kingdom Arakawa Yutaka, Kyushu University, Japan Armayones Ruiz Manuel, Universitat Obertade Catalunya, Spain Braakman-Jensen Annemarie, University of Twente, Netherlands Brinkman Willem-Paul, Delft University of Technology, Netherlands Burri Gram-Hansen Sandra, Aalborg University, Denmark Condori Fernandez Nelly, Universidad Santiago de Compostela, Spain Florez-Arango Jose, Cornell University, United States Fraser Kieran, IBM, Ireland Guadagno Rosanna, University of Oulu, Finland Haque Sanaul, LUT University, Finland Iyengar Sriram, University of Arizona, United States Meedya Shahla, Western Sydney University, Australia Morita Plinio, University of Waterloo, Canada Oyibo Kiemute, York University, Canada Ren Xipei, Beijing Institute of Technology, China Rieder Annamina, Simon Fraser University, Canada Sittig Scott, University of Louisiana, United States Spelt Hanne, Philips, Netherlands Stoffregen Kristian, Copenhagen School of Design & Technology, Denmark Vlahu-Georgievska Elena, University of Wollongong, Australia Wiafe Isaac, University of Ghana, Ghana Yetim Fahri, FOM University of Applied Sciences, Germany We look forward to receiving your submissions!