This book explains the thermodynamics background necessary for generating accurate maps of equilibrium states to predict behavior in a wide range of materials. It also illustrates which maps are best suited for specific real-world scenarios and thermodynamic problems. This second edition introduces new, more user-friendly computer software for converting more comprehensive databases into equilibrium maps. Examples and sample problems show how to apply appropriate strategies and develop the working equations of thermodynamics for systems of systematically increasing complexity. A printed Solutions Manual and online Instructor's Notes are available with qualifying course adoptions.