Historical review of plasma physics. Characteristic plasma parameters. Debye shielding. Quasy-neutrality. Plasma and cyclotron frequencies. Collisional processes in plasma. Collisional frequency. Magnetohydrodynamics: basic equations. Instability of plasma systems. Plasma waves. Plasma diagnostics: temperature and density measurements. Types of plasma and use: artificialy produced plasmas, terrestrial plasmas, plasmas in universe.