Volume 80 of “Neutrosophic Sets and Systems” showcases cutting-edge research and applications of neutrosophic theory in various scientific and engineering disciplines. The papers in this volume present novel frameworks and methodologies for addressing problems characterized by uncertainty, vagueness, and imprecision. A significant focus is on advanced multi-criteria decision-making (MCDM) approaches, with applications ranging from evaluating e-commerce sites and teaching quality in diverse university subjects to credit evaluation in construction projects. The volume also includes studies on theoretical extensions of neutrosophic concepts, such as neutrosophic hypersoft sets, plithogenic sets, and hypersoft semi-connected spaces. Furthermore, applied research is featured on topics including stock price prediction using hybrid models, assessing the performance of social institutions, and mapping barriers to sustainable fashion consumption. This collection demonstrates the versatility of neutrosophic theory as a powerful tool for modeling and solving complex, real-world problems.