1. Glass Formation in Chalcogenide Systems and the Periodic System of Elements.- 2. Glasses in Binary Systems.- 3. Glasses in the Sulfur-Selenium-Tellurium System and in the Arsenic (Germanium, Phosphorus)-Chalcogen-Chalcogen Systems.- 4. Glasses Based on Selenides of Arsenic and of Elements of Groups VII-V of the Periodic System.- 5. Three-Component Glasses Based on Selenides (Sulfides) of Elements of Groups V, IV, and III of the Periodic System.- 6. Three-Component Chalcogenide Glasses Produced with Metals of the Main Groups and Subgroups.- 7. High-Conductivity Glasses of Three-Component Systems Containing Tellurium.- 8. Chemical Stability and Kinetics of Dissolution of Glassy Semiconductors.- References.