Textbook in PDF format This book deepens the current understanding of the thermodynamics and kinetics of metallic glass-forming liquids, and their connection with the glass-formation process in terms of fundamental physical metallurgy concepts. It surveys and reports on the progress made in the last few decades to access the ultra-viscous liquid state of thermally stable bulk metallic glass (BMG) forming alloys and study the changes in atomic structure, viscosity, and enthalpy during the vitrification including physical aging