The course begins with a review of basic concepts in statistical physics, including the probability theory. Canonical ensemble and concepts such as partition functions and state density are introduced. The course continues with a review of the theory of large canonical ensemble and its applications. Particular emphasis is placed on particle systems in specific single particle states and in the Bose-Einstein, Planck and Fermi-Dirac distribution functions. Properties of degenerate Bose gases and Fermi gases are derived. Concepts and phenomena such as photon gas, black body radiation, Fermi energy and Bose-Einstein condensation are addressed. The course concludes with a review of the classic border, Maxwell's speed distribution and the equation partition theorem.