Leaf anatomy provides the framework for photosynthesis, transpiration, and gas exchange, making it central to plant survival and productivity. This session explores the structure and organization of leaf tissues, including the epidermis, mesophyll, veins, and stomata. Experts will discuss how stomatal distribution and density influence water use efficiency and carbon dioxide uptake. Participants will also learn about the role of palisade and spongy mesophyll in maximizing light capture and facilitating gas exchange. The session emphasizes structural adaptations in leaves across different ecosystems, from xerophytic leaves designed for arid conditions to hydrophytic leaves suited for aquatic habitats. Attendees will gain insights into how leaf venation patterns affect nutrient transport and mechanical strength. Advanced microscopy and imaging techniques for studying leaf structures will be presented. Researchers will also discuss the link between leaf anatomy and plant responses to environmental stressors such as high light, drought, and elevated CO₂. Applications in crop improvement will highlight how modifying leaf traits can boost photosynthetic capacity and resilience. By bridging plant anatomy with functional ecology, this session offers a comprehensive perspective on the role of leaves in sustaining life and agriculture.