About the Book: This introductory book on statistical physics explains fundamental principles in simple terms, covering classical and quantum statistics, degeneracies, indistinguishability, and counting methods for Maxwell–Boltzmann, Fermi–Dirac, and Bose–Einstein statistics. Applications include solids, radiation, electrons in metals, Bose–Einstein condensation, black-body radiation, black holes, and superconductivity, with detailed calculations throughout.