The International Conference on Sustainable Development is organized by the European Center of Sustainable Development in collaboration with CIT University. The 13th ICSD 2025 draws inspiration from the pressing challenges of environmental, economic, and socio-cultural sustainability, addressing the needs of present and future generations within a global-scale context. The Conference theme is: "Creating a unified foundation for the Sustainable Development: research, practice and education". The 2025 Conference will once again provide a forum for the sharing of ideas, presentation of research findings, and discussion of professional issues relevant to Sustainability Science. This initiative will advance through a multidisciplinary approach, integrating diverse fields and perspectives to address the core and interconnected questions of Sustainable Development. It serves as a collaborative platform for scholars, educators, and practitioners from all professional disciplines who share a commitment to sustainability. The focus is on a holistic perspective that embraces the intersection of environmental, cultural, economic, and social dimensions.