The term "Landau-Lifshitz" refers to a series of influential textbooks on theoretical physics, co-authored by Lev Landau and Eugene Lifshitz. These texts cover various topics, including quantum mechanics, statistical physics, and electrodynamics, and are known for their rigorous approach and clarity. They are widely used in graduate-level physics education. The Landau-Lifshitz series is part of the Course of Theoretical Physics, which consists of ten volumes. The books emphasize a deep understanding of physical principles and mathematical techniques, making them essential resources for students and researchers in the field of physics.