This lecture focuses on the design of punching shear in concrete slabs using the ancoPLUS software. The instructor presents initial calculations and discusses the graphical representation of various resistance values. Key concepts include the behavior of slabs under increasing loads, the resistance of slabs without reinforcement, and the importance of using appropriate reinforcement to enhance structural integrity. The lecture highlights the significance of understanding the software's calculations and encourages students to verify results manually. The instructor explains the different curves representing resistance and failure modes, emphasizing the need for careful analysis when loads exceed certain thresholds. Additionally, the lecture covers the exportation of calculation data for documentation purposes and the use of detailed schematics for construction. Overall, the session provides a comprehensive overview of punching shear design principles and practical applications in civil engineering.