This lecture covers NISQ algorithms, focusing on the Variational Quantum Eigensolver (VQE) method. The slides discuss error mitigation techniques, digital zero-noise extrapolation, and the VQE algorithm's application in estimating ground state energies. The instructor explains the concept of variational quantum algorithms and their role in solving optimization problems. The lecture emphasizes the importance of hardware-efficient quantum algorithms and the challenges faced in implementing NISQ algorithms.