Assuming only a basic knowledge of Newtonian mechanics, this textbook provides a unified, comprehensive, and coherent introduction to continuum mechanics from a modern perspective. It presents in-depth discussions of important topics, such as local thermodynamic equilibrium, existing models of turbulence, basic magnetohydrodrnamics, tsunamis, and explosions. With updated problems and solutions, this second edition features two new chapters addressing large-amplitude surface waves and aerodynamic theory. All online material - Mathematica[registered] programs, images, additional problems, and brief biographies - have also been updated.