'Eight Lectures on Theoretical Physics' is the published book of a series of lectures delivered at Columbia University by renowned physicist and Nobel Physics Prize winner Max Planck. It covers the following areas of theoretical physics: Reversibility and irreversibility, Thermodynamic equilibrium in dilute solutions, Atomistic theory of matter, Equation of state of a monatomic gas, Radiation, electrodynamics theory. Statistical theory, Principle of least work and the Principle of relativity.