||Highlighting the International Year of Glass, this symposium provides a forum for the discussion of current issues in the science and technology of glasses and optical materials, including fundamental and applied glass science, novel glass synthesis and characterization methods, structure-processing-property relations of optical materials and their applications. Examples of topics extend to advanced structural analysis, glass transition and relaxation, atomistic scale simulations of glasses, new functionalities and novel applications of glasses and amorphous materials. Contributions from academia, national laboratories, and industries addressing recent advances and new applications are welcome. This symposium includes the ACerS GOMD Alfred R. Cooper Award session, and it is endorsed by the ACerS Glass & Optical Materials Division, Nuclear & Environmental Technology Division, and Basic Science Division. Proposed topics include: Advances in characterization of glass and optical materials; Atomistic computer simulations of glass structures, properties, and processing; Machine learning, big data, and material genome studies and applications; Glass–environment interactions; Novel formulations and synthetic routes for formation of glasses, amorphous materials, and glass-ceramics; Bioactive glasses and glass-ceramics; Novel optical materials; Ultra-thin glasses, thin films, and functional photonic devices; Chalcogenide, Fluoride and other non-oxide glasses or mixed oxide glasses; Mechanics and strengthening mechanism of glass and glass-ceramics; Industrial glass processes, melting, fining, heat-treatment, and engineering; Teaching of glass science and optical properties.