The book "Rheology of Metals" explores how metals flow and deform under various conditions, including applied stress, temperature, and strain rate. Understanding these rheological properties is essential for predicting metal behavior in processes like casting, forging, welding, and extrusion. Metal flow can exhibit solid-like elasticity, liquid-like viscosity, or a combination of both, influenced by factors such as temperature, pressure, and alloy composition. Viscoplasticity models help describe metal behavior, particularly at high temperatures where metals become softer and more ductile, reducing yield strength and viscosity. This plays a crucial role in processes like hot rolling or casting, where heating lowers the forces required for deformation. Certain metals, especially in their molten state, can be effectively modeled using the Bingham plastic model, further aiding in the analysis of their flow characteristics.