The course is aimed about the knowledgments concerning the modern development for the inorganic glasses and glass – ceramics. The lection course including the characteristics of the modifying properties for the corrosion and mechanical resistance improving. Theoretical problems about glass improving by the chemical processes and mechanical treatment. Controlling the crystallization processes in the inorganic glasses. Modifying of the optical characteristics of the glasses by the coatings. Increasing of the thermal parameters. Different kind of glasses and their application. The course are including the methods and different manner for modifying of the glassy and glass – crystal products.